Support scanning multiple directories

[GeofferyMedved]

Allow users to pass a comma separated list (or other syntax) of multiple directories for line counting.

[PavanMudigondaTR]

The below changes are being added part of this PR.

• [x] Support Multiple Directories. Comma Separated
• [x] Include Languages Input. Comma Separated
• [x] Exclude Directory Input. Comma Separated
• [x] Exclude Languages Input. Comma Separated
• [x] Include File Extension Input. Comma Separated
• [x] Exclude File Extension Input. Comma Seperated
• [x] Update Check to Success from Neutral
• [x] Update Check to show Lines of Code
• [x] Updated Documentation README.md

[PavanMudigondaTR]

@GeofferyMedved This is done. Please use v1.5. Also ReadMe is updated with full documentation.