EffectMaster

[Changes]

• Added /em import command for presets
• Added /em export command for presets
• Changed falling block system to use display entities instead, the affected effects are:
  • Falling Block
  • Fountain
  • Fountain Line
  • Fountain Path
  • Fountain Dancing
  • Fountain Bloom
• Changed particle effects to have more customizability, the affected effects are:
  • Particle
  • Particle Emitter
  • Particle Line
  • Particle Path
• Some parameters may only show based on the value of other parameters, this reduces the amount of unnecessary parameters in the editor
• Added /em loop to manage show looping through commands

[Bug fixes]

• Fix update version for spline type change
• Fix bug where light level on Light effect didn't work
• Fix Folia support