[Discord] Improve Reactions cog command structure and aliasing
[Discord] Improve Reactions cog command structure and aliasing

Improve reaction commands to be subcommands of new reactions command
Improve command and reaction processor names
Improve method to alias subcommands across cogs
Fixes issue with subcommand aliases referencing cog attributes for parent command cog instead of Reactions cog

Harmon758/Harmonbot,Harmon758/Harmonbot