- use rustls for reqwest, so we don't need to compile OpenSSL
- use better defaults for build arguments in Dockerfile
- add Continuous Integration workflow for master branch and it's pull requests
- add Release workflow for tags matching SemVer
- add release template for automatic release notes generation with GH CLI
- remove old and unused assets under .github
~ README revised
~ updated Docker files
+ all const are placed in a separate file
+ auto creation for avatars folder
+ automatic retrieval of the latest Figura version for version request in api