Add Process Start Action

A new type of action which executes an arbitrary command string.
The configured string is passed as-is to cmd.exe /C with no validation
or checking, to be used to launch applications.

Example inputs:
notepad.exe
C:\Program Files\Mozilla Firefox\firefox.exe
notepad.exe foo.txt

Release 21.11.01

Bump version number and add development release zip.

Update version scheme to YY.MM.DD.

Cut release of v0.10.

	Add minor refactor to VI_Phrase -> Phrase, VI_Action_Sequence -> Action_Sequence.

Update version number.

Add v0.08 release zip.

Update README.md

Update README.md

Add v0.08 release zip.