Port and refactor useful ERFA functions

[helgee]

A

• a2af -> lox_core::units
• a2tf -> lox_core::units
• ab -> lox_earth::ephemeris
• ae2hd -> lox_core::coords
• af2a -> lox_core::units
• anp -> lox_core::units
• anpm -> lox_core::units
• apcg -> unneeded
• apcg13 -> unneeded
• apci -> unneeded
• apci13 -> unneeded
• apco -> unneeded
• apco13 -> unneeded
• apcs -> unneeded
• apcs13 -> unneeded
• aper -> unneeded
• aper13 -> unneeded
• apio -> unneeded
• apio13 -> unneeded
• atcc13 -> unneeded
• atccq -> unneeded
• atci13 -> unneeded
• atciq -> unneeded
• atciqn -> unneeded
• atciqz -> unneeded
• atco13 -> unneeded
• atic13 -> unneeded
• aticq -> unneeded
• aticqn -> unneeded
• atio13 -> unneeded
• atioq -> unneeded
• atoc13 -> unneeded
• atoi13 -> unneeded
• atoiq -> unneeded

B

• bi00 -> lox_earth
• bp00 -> lox_earth
• bp06 -> lox_earth
• bpn2xy -> lox_earth

C

• c2i00a -> lox_earth
• c2i00b -> lox_earth
• c2i06a -> lox_earth
• c2ibpn -> lox_earth
• c2ixy -> lox_earth
• c2ixys -> lox_earth
• c2s -> lox_earth
• c2t00a -> lox_earth
• c2t00b -> lox_earth
• c2t06a -> lox_earth
• c2tcio -> lox_earth
• c2teqx -> lox_earth
• c2tpe -> lox_earth
• c2txy -> lox_earth
• cal2jd -> lox_core::time
• cp -> unneeded
• cpv -> unneeded
• cr -> unneeded

D

• d2dtf -> lox_time
• d2tf -> lox_core::units
• dat -> lox_time
• dtdb -> lox_time
• dtf2d -> lox_time

E

• eceq06 -> unneeded
• ecm06 -> lox_earth
• ee00 -> lox_earth
• ee00a -> lox_earth
• ee00b -> lox_earth
• ee06a -> lox_earth
• eect00 -> lox_earth
• eform -> unneeded
• eo06a -> lox_earth
• eors -> lox_earth
• epb -> unneeded
• epb2jd -> unneeded
• epj -> lox_time
• epj2jd -> lox_time
• epv00 -> lox_earth
• eqec06 -> unneeded
• eqeq94 -> lox_earth
• era00 -> lox_earth
• erfam -> lox_core

F

• fad03 -> lox_earth
• fae03 -> lox_earth
• faf03 -> lox_earth
• faju03 -> lox_earth
• fal03 -> lox_earth
• falp03 -> lox_earth
• fama03 -> lox_earth
• fame03 -> lox_earth
• fane03 -> lox_earth
• faom03 -> lox_earth
• fapa03 -> lox_earth
• fasa03 -> lox_earth
• faur03 -> lox_earth
• fave03 -> lox_earth
• fk425 -> unneeded
• fk45z -> unneeded
• fk524 -> unneeded
• fk52h -> unneeded
• fk54z -> unneeded
• fk5hip -> unneeded
• fk5hz -> unneeded
• fw2m -> lox_earth
• fw2xy -> lox_earth

G

• g2icrs -> unneeded
• gc2gd -> lox_core::coords
• gc2gde -> lox_core::coords
• gd2gc -> lox_core::coords
• gd2gce -> lox_core::coords
• gmst00 -> lox_earth
• gmst06 -> lox_earth
• gmst82 -> lox_earth
• gst00a -> lox_earth
• gst00b -> lox_earth
• gst06 -> lox_earth
• gst06a -> lox_earth
• gst94 -> lox_earth

H

• h2fk5 -> unneeded
• hd2ae -> lox_core::coords
• hd2pa -> unneeded
• hfk5z -> unneeded

I

• icrs2g -> unneeded
• ir -> unneeded

J

• jd2cal -> lox_time
• jdcalf -> lox_time

L

• ld -> unneeded
• ldn -> unneeded
• ldsun -> unneeded
• lteceq -> unneeded
• ltecm -> unneeded
• lteqec -> unneeded
• ltp -> unneeded
• ltpb -> unneeded
• ltpecl -> unneeded
• ltpequ -> unneeded

M

• moon98 -> lox_earth

N

• num00a -> lox_earth
• num00b -> lox_earth
• num06a -> lox_earth
• numat -> lox_earth
• nut00a -> lox_earth
• nut00b -> lox_earth
• nut06a -> lox_earth
• nut80 -> lox_earth
• nutm80 -> lox_earth

O

• obl06 -> lox_earth
• obl80 -> lox_earth

P

• p06e -> lox_earth
• p2pv -> lox_core::coords
• p2s -> lox_core::coords
• pap -> lox_core::coords
• pas -> lox_core::coords
• pb06 -> lox_earth
• pdp -> unneeded
• pfw06 -> lox_earth
• plan94 -> lox_ephem
• pm -> unneeded
• pmat00 -> lox_earth
• pmat06 -> lox_earth
• pmat76 -> lox_earth
• pmp -> unneeded
• pmpx -> unneeded
• pmsafe -> unneeded
• pn -> unneeded
• pn00 -> lox_earth
• pn00a -> lox_earth
• pn00b -> lox_earth
• pn06 -> lox_earth
• pn06a -> lox_earth
• pnm00a -> lox_earth
• pnm00b -> lox_earth
• pnm06a -> lox_earth
• pnm80 -> lox_earth
• pom00 -> lox_earth
• ppp -> unneeded
• ppsp -> unneeded
• pr00 -> lox_earth
• prec76 -> lox_earth
• pv2p -> unneeded
• pv2s -> lox_core::coords
• pvdpv -> unneeded
• pvm -> unneeded
• pvmpv -> unneeded
• pvppv -> unneeded
• pvstar -> unneeded
• pvtob -> unneeded
• pvu -> unneeded
• pvup -> unneeded
• pvxpv -> unneeded
• pxp -> unneeded

R

• refco -> unneeded
• rm2v -> unneeded
• rv2m -> unneeded
• rx -> unneeded
• rxp -> unneeded
• rxpv -> unneeded
• rxr -> unneeded
• ry -> unneeded
• rz -> unneeded

S

• s00 -> lox_earth
• s00a -> lox_earth
• s00b -> lox_earth
• s06 -> lox_earth
• s06a -> lox_earth
• s2c -> lox_core::coords
• s2p -> lox_core::coords
• s2pv -> lox_core::coords
• s2xpv -> unneeded
• sepp -> unneeded
• seps -> unneeded
• sp00 -> lox_earth
• starpm -> unneeded
• starpv -> unneeded
• sxp -> unneeded
• sxpv -> unneeded

T

• taitt -> lox_time
• taiut1 -> lox_time
• taiutc -> lox_time
• tcbtdb -> lox_time
• tcgtt -> lox_time
• tdbtcb -> lox_time
• tdbtt -> lox_time
• tf2a -> lox_core::units
• tf2d -> lox_core::units
• tpors -> unneeded
• tporv -> unneeded
• tpsts -> unneeded
• tpstv -> unneeded
• tpxes -> unneeded
• tpxev -> unneeded
• tr -> unneeded
• trxp -> unneeded
• trxpv -> unneeded
• tttai -> lox_time
• tttcg -> lox_time
• tttdb -> lox_time
• ttut1 -> lox_time

U

• ut1tai -> lox_time
• ut1tt -> lox_time
• ut1utc -> lox_time
• utctai -> lox_time
• utcut1 -> lox_time

X

• xy06 -> lox_earth
• xys00a -> lox_earth
• xys00b -> lox_earth
• xys06a -> lox_earth

Z

• zp -> unneeded
• zpv -> unneeded
• zr -> unneeded