Add a package/publish command for Android

[rosen-vladimirov]

Similar to tns publish ios we need tns publish android command.
More info here:
#1172

[Mitko-Kerezov]

According to the official docs, there is a Publishing API. Its capabilities are very limited however, as it actually cannot perform an initial upload.

Meaning that users would be required to create an entry for their application, fill in all the information and manually upload an .apk file the first time. From then on the potential $ tns android publish command can be used to upload new versions or manage existing versions' tracks - alpha, beta, staging, etc.

Aside from this, there appears to be a gradle plugin, serving as a wrapper over the Publishing API. As such it too has the limitation of having to perform the initial upload manually.

Given those circumstances, such a command has far less value than $ tns publish ios

[PanayotCankov]

For CI it has potential enough.