sNightVision Plugin

• Simple API update

• API update

• Updated API version for 1.21 - 1.21.10 Compatibility

• Update to 1.21.10
• Added a Plugin description for the Paper /version command.

description: "§bA simple plugin to toggle nightvision effect"

• Updated to 1.21.9.
• Changed behavoir when prefix is missing
  • will now display &c*MISSING-PREFIX* instead of NV.
• plugin.yml now uses '${project.version}' for Project Version.
• Corrected Website in plugin.yml
• /nightvision and all related aliases are now visible for everyone by default.