Add git touch

• The app complies with the inclusion criteria
• The original app author has been notified (and does not oppose the inclusion) https://github.com/git-touch/git-touch/issues/6#issuecomment-541382047
• All related fdroiddata and RFP issues have been referenced in this merge request
• The upstream app source code repo contains the app metadata (summary/description/images/changelog/etc) in a Fastlane or Triple-T folder structure
• Builds with fdroid build
• Releases are tagged

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Close rfp#1180 (closed)

Build fine, works well. Fastlane is comming.