Refactored code & added energy-based XAS Scans

[subughimire420]

After re-factoring the code, plans need to be called with detectors identified:
One panda, One sequnce table:

• bc.plans.seq_table(start = 1, stop = 10, stepsize = 1, time_per_point = 0.5, motor = bc.devices.turbo_slit_x, add_sweep_triggers=True, number_of_sweeps= 8, detectors = [[bc.devices.panda1,1]])

Panda1 with 2 sequence tables, and Panda2 with one sequnce table:

• bc.plans.seq_table(start = 1, stop = 10, stepsize = 1, time_per_point = 0.5, motor = bc.devices.turbo_slit_x, add_sweep_triggers=True, number_of_sweeps= 8, detectors = [[bc.devices.panda1,2],[bc.devices.panda2, 1])

Likewise other seq-table related scans have the same method of defining which detector to use, and how many sequence tables it has:

• bc.plans.seq_non_linear(ei=6000.0, ef=10000.0, de=100.0, duration=0.25, detectors=[[bc.devices.panda1,1]])

Also, added energy based XAS scan:

• bc.plans.xas_scan(element = "Mn", edge = "K", duration = 0.1, detectors=[[bc.devices.panda1, 1]])