Rad Gyms [Cobblemon]

# Release v0.4.0

# Beware: because of the move to multiplatform and NF implementation - old saves will not work with new version

### The big multiplatform release

**Works with Cobblemon 1.7.3**

[Modrinth](https://modrinth.com/mod/rad-gyms) | [Curseforge](https://www.curseforge.com/minecraft/mc-mods/rad-gyms-cobblemon)

## What's Changed
* Added NeoForge support
* Added developer event API
* Added gym instance persistence 
* Added configurable cache pools in config file
* Added statistics:
1. Gyms visited - increments when player starts the instance
2. Gyms failed - increments when player dies in instance, uses exit rope, exit block or gets kicked by OP command when gym leader is not beaten
3. Gyms beaten - increments when player gets gym reward for beating instance
4. Gym entrance block uses - increments when player starts the instance via gym entrance block
5. Gym key uses - increments when player starts the instance via gym key
6. Exit rope uses - increments when player uses exit rope in gym
7. Poke cache uses - increments when player opens Poke cache

* Added new gym reward types:
1. **Command** type: can be executed as player or as server. OP level can be managed too. Defaults to OP level 2
9. **Pokemon** type: Requires valid pokemon property, rewards a player who completes the instance
10. **Advancement** type: Requires valid identifier.
* Disabled world borders in gym dimension
* Re-added and moved gym commands to `/rg` command namespace
* Reviewed and cleaned up cache configurations
* Optimized and refactored alot of underlying stuff

### Contributors
* @landonjw made a first contribution

**Full Changelog**: https://github.com/gitoido-mc/rad-gyms/compare/1.7.0 0.3.1-stable...1.7.3 0.4.0

Thank you all for the wait! Moving to multiplatform took a good chunk of time because i wanted to *make things right™*.
Nearest plans are to make a proper documentation for pack makers.
Here's to new year with Rad Gyms! (even tho its february already)