Implement upload button

[joerick]

To provide some context - at a base level this is just calling the tbtool install shell command from the tingbot-python library.

Things get a little more interesting on Windows however. Internally, tbtool uses rsync and ssh to connect and copy to the Tingbot, and these aren't easily available on Windows.

• If possible, the cleanest solution would be to bundle a binary build of rsync and ssh. Then the tbtool code will run unmodified.
• Failing that the PuTTY project makes available some ports of ssh and scp (Plink.exe and PSCP.exe) that could be used instead. This would require some (hopefully minor) modifications to tbtool.

[joerick]

Just had another idea for how to implement this - the Python paramiko library builds cleanly on Windows and can run commands and send files via SFTP. Porting tbtool to run on this would provide a common base for all the platforms.

Would also be cleaner for the tingbot-python library to have a Python dependency, rather than a shell/system dependency. This is my preferred solution I think.

[joerick]

I've replaced the ssh and rsync bits with Python code using paramiko over in https://github.com/tingbot/tingbot-python/commit/e712e162868740dea025f9628c2f5a1a1e18e10f, so there's no need to bundle any extra tools with Windows. It adds a dependency to tingbot-python, but we already have some native deps there anyway (pygame, Pillow). Given a proper install of tingbot-python, a call to tbtool run/install will just work.

[joerick]

This is complete, implemented in 28478ba8122fd3c66d92653d6d4e11f04d940e53