[Feature] Add First time commits since about git-quick-stats

[arzzen]

hi @TheLarkInn, from now, you can set variable _GIT_SINCE, _GIT_UNTIL and limit the git log

eg:
export _GIT_SINCE="2017-20-01"
export _GIT_UNTIL="2017-22-01"

then run ./git-quick-stats (affect all stats, except "My daily status" and "Git changelogs" )

[TheLarkInn]

Thanks for the workaround, if you don't mind I'll share the repo in our spotlight as a "powered by" plug.

[arzzen]

Ok, thank you