Merge pull request #145 from DiamondLightSource/diamond2-conversion

Diamond 2 conversion:

-Update all diamond 1 ringmodes using the version of load_mml.m from main. This is because there were some major changes to DIAD, VMX and SRI0913_MOGA ~3 years ago which hadnt been applied to our configs.
-Update load_mml.m and load_unitconv.m for the diamond 2 ring and ao.
-load_mml.m and load_unitconv.m should now work for both diamond 1 and diamond 2 ringmodes.
-Remove redundant "name" column from elements.csv file generation and from the pytac code which loads this csv.
-Added multipoles to rigidity_families dictionary
-Regenerated all ringmodes, including the addition of the D2 ringmode, 48, using the updaded matlab scripts.
-Minor refactor to load_mml to reduce the number of exceptions required by doing lookups using FamName instead of Class
-Update CSVs to use correct PV names for BBVMXL and BBVMXS

Author: ptsOSL

.gitignore

@@ -67,3 +67,5 @@ venv*
 # further build artifacts
 lockfiles/
 
+# matlab autosave
+*.asv