Show invocable's help even without a config file

[Javagedes]

Enables the invocable to display it's command line arguments if -h or --help is provided, regardless of if it has a configuration file.

Examples

stuart_build

WARNING: Some command line arguments may be missing. Provide a platform module file to ensure all command line arguments are present.

usage: stuart_build [-h] [-c PLATFORM_MODULE]

options:
  -h, --help            show this help message and exit
  -c PLATFORM_MODULE, --platform_module PLATFORM_MODULE
                        Provide the Platform Module relative to the current working directory.This should contain a BuildSettingsManager instance.

stuart_ci_build

WARNING: Some command line arguments may be missing. Provide a platform module file to ensure all command line arguments are present.

usage: stuart_ci_build [-h] [-c PLATFORM_MODULE] [-p PACKAGELIST] [-a REQUESTED_ARCH] [-t REQUESTED_TARGET]

options:
  -h, --help            show this help message and exit
  -c PLATFORM_MODULE, --platform_module PLATFORM_MODULE
                        Provide the Platform Module relative to the current working directory.This should contain a CiBuildSettingsManager instance.
  -p PACKAGELIST, --pkg PACKAGELIST, --pkg-dir PACKAGELIST
                        Optional - A package or folder you want to update (workspace relative).Can list multiple by doing -p <pkg1>,<pkg2> or -p <pkg3> -p <pkg4>
  -a REQUESTED_ARCH, --arch REQUESTED_ARCH
                        Optional - CSV of architecture requested to update. Example: -a X64,AARCH64
  -t REQUESTED_TARGET, --target REQUESTED_TARGET
                        Optional - CSV of targets requested to update. Example: -t DEBUG,NOOPT

[codecov]

Codecov Report

Merging #639 (eff180c) into master (c847f79) will decrease coverage by 0.10%.
The diff coverage is 12.50%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #639      +/-   ##
==========================================
- Coverage   78.83%   78.74%   -0.10%     
==========================================
  Files          49       49              
  Lines        4843     4850       +7     
==========================================
+ Hits         3818     3819       +1     
- Misses       1025     1031       +6     

Files	Coverage Δ
...oolext/invocables/edk2_multipkg_aware_invocable.py	80.43% <ø> (ø)
edk2toolext/edk2_invocable.py	75.69% <12.50%> (-2.48%)	⬇️