feat: Add version control

[MichaelXanth]

Changes

1. Add support for --version and -v options to display the current version of the app
2. Add version control so that when a new version is uploaded, prevent the apps from running and prompt the users to update the app before proceeding
3. Allow the app to run without the required TARGET argument only when specific flags are enabled (i.e. -v)

Requirements

1. You need to create a new tag for the desired versions

   • For example, when pushing version 0.4.3 you should create the tag v0.4.3
   • This can be done for each uploaded version or for crucial versions that contain significant changes or important bug fixes

2. The tags don't need to be annotated. You can use lightweight tags. The commands to create a tag at the latest commit are:

   • git tag v0.4.3
   • git push origin v0.4.3

3. To delete a tag run:

   • git tag -d v0.4.3
   • git push origin :refs/tags/v0.4.3

Implementation

• The idea is that we get the latest available version using the Github API to access the metadata of the srcup repo. The repo is public, so no further authorization is needed to get that information

• We get the current version of the installed app and we compare the two versions allowing any version greater than the latest tag to be used

  • This allows us to not block the app on every update, but when an important change is published and we want all the users to upgrade before proceeding, then we can bump the tag version as well and enforce them to update

[iliastsa]

Looks good, we can merge!