Load projects from files

[Hultner]

For testing purposes I currently hardcoded my projects.

The idea is that we should be able to load projects from JSON/(safe)YAML/TOML files (in that priority order). These files should either be able to exist in a user defined directory $WORK_PAUSE_PROJECT_DIR which defaults to ~/.work_pause or similar. We should also look in the current working directory of the invoker as well as the git root of the current folder.

• Load JSON
• Load YAML
• Load TOML
• Load from dir defined by $WORK_PAUSE_PROJECT_DIR
• Load from current working directory of invoker
• Load from git root to current working directory of invoker