…nic-net#5924)

This should also fix the vsimage check build.

Commits include:

* src/sonic-platform-common a659219...e4883e5 (7):
  > [PsuBase] Reference inherited member constant (#142)
  > Thermalctld APIs for recording min and max temp (#131)
  > Common power consumption and supply APIs for modular chassis (#136)
  > [sonic-platform-base] Introduce APIs for modular chassis support (#124)
  > Remove shebangs from non-executable Python files (#140)
  > [sonic_eeprom] Make compatible with Python 2 and 3 (#127)
  > Add unit test infrastructure (#139)

* src/sonic-platform-daemons 600d043...be21d91 (9):
  > [psud] Import of mock libraries determined by environment variable (#117)
  > [chassisd][thermalctld] Set testing env var at top of file, not in setup_function() (#114)
  > [chassisd][thermalctld] Import os module, now needed for env var checking (#113)
  > [chassisd][thermalctld] Import mock libraries based on environment variable (#112)
  > [xcvrd] Fix the console-script xcvrd startup  (#111)
  > [Thermalctld] Update thermal info to CHASSIS_STATE_DB (#101)
  > PSUd changes to compute power-budget for Modular chassis (#104)
  > Introduce chassisd to monitor status of cards on chassis (#97)
  > [xcvrd] support for integrating Credo Y cable Ports initialization and status updates with xcvrd.  (#105)