Added ADC instantiation to server
Added docstrings to read_channel() function explaining args
Undid previous issue where I removed all revisions of ADC
Added instantiation args to ADC class (as opposed to hard-coded address
Added config.yaml dict for identifying addressed of external ADC's
read_channel unit tests for ADC
Merge branch 'ADC_testing' into ADC_dev
read_ir() now prints all channels of specified ADC
Removed IR_board dict of adc's, replaced by already existant and more appropriate  ir_analog_adc_config
syntax errors
renamed read_ir to print_ir_loop
fixed merge conflict
removed ADC instantiation from server
created read_ir, function for reading individual value
print_ir_loop() now iterates through all channels
changed input cmd byte to ADC's in config.yaml
 syntax error
renamed addr to cmd in config file for human readability
adjusted read_all() function to work with new ADC
adjusted read_all() to use new adc's