Port ADC functions

[CloudyPadmal]

• CAPTURE_12BIT
• CAPTURE_ONE (feat: oscilloscope capture one channel #101)
• CAPTURE_TWO (Oscilliscope: Implement two, three, and four channel mode #107)
• CAPTURE_THREE (Oscilliscope: Implement two, three, and four channel mode #107)
• CAPTURE_FOUR (Oscilliscope: Implement two, three, and four channel mode #107)
• SET_HI_CAPTURE
• SET_LOW_CAPTURE
• MULTIPOINT_CAPACITANCE
• PULSE_TRAIN
• CAPTURE_DMASPEED (feat: Implement oscilloscope DMA capture #110)
• SET_CAP (feat: ctmu capacitance measurement #104)
• CONFIGURE_TRIGGER (Oscilloscope: Trigger and gain configuration #108)
• GET_CAPTURE_STATUS (feat: oscilloscope capture one channel #101)
• SET_PGA_GAIN (Oscilloscope: Trigger and gain configuration #108)
• SELECT_PGA_CHANNEL (Not used in python. There's no good use to select a PGA channel to say.)
• GET_VOLTAGE (refactor: core project structure #79)
• GET_VOLTAGE_SUMMED (refactor: porting wavegenerator functions #92)
• GET_CAPTURE_CHANNEL (Not used in python. Can use BUFFER_FetchLong and BUFFER_FetchInt instead)