ExtraMod [Core and Mod Template] v1.51, Template v1.5

Discovered that the right hand skin wasn't updating as intended on body mods. Patched that issue.

Nails, Eyes, and Unloading
This is a major update that many upcoming releases will be dependent on.

To-Do: Add nail polish to feet mods.

Change Log:
EMv1.50, Template V1.5 - 7/13/2023
- Changed the ExtraModsSettings to included configForMoreclothing and removed useDebug.
- Major Template improvements to reference assets.
- Improvements to MoreClothing compatibility.
- Added emUnloader a public function that can add custom unload elements for advanced modders. Added example of use to the template.
- Fixed bug where some mods assets wouldn't update while game was paused.
- Made eye mask moremoods compatible.
- Fixed eye ridge overwrite and visibility. Cleaned up eye functions. Added eyeshadow possiblity to lower eyelid.
- Added skin registration to neck tween.
- Fixed eye mask mod, removed erase blend mode on masks, improvements to eye proxy
- Added a neck tween.
- Fixed various hand nail polish modding.

I apologize for some many updates in rapid succession, but if it's of any consequence they are all minor updates that just allow for new modding capabilities - added as the needs arise.

This update addresses the following:
EMv1.40, Template V1.4 - 7/4/2023
- Simplified versioning (make the number after the version the build number - starting with 4)
- Added BackLayer, SceneLayer, and MistLayer to ExtraMod ModType OVERLAY
- Added BackLayer to the Template
(Mistlayer and scenelayer have access using instance name mistlayer or scenelayer inside of the overlay modtype)

- Added better support for tanning (including tanning for the HEAD modtype)
- Added Mood-based asset transitions
- Minor loading improvements
- Added a tutorials section to the Template
- Major change: Swapped extramod_comm as the api for EM to just "extramod" (so l.extramod or main.extramod)

Forgot to remove the extramodlibrary dependencies from the mod template (these are deprecated) which throws a compile error when attempting to make an EM mod.

Removed the following:

import ExtraModLibrary.*

Some example mods were older versions not compatible with the latest release. Removed those example mods from package 1.02-3