Optimize two vectors in alpha draw pool by making them static and clearing at end of draw, this avoids thousands of mallocs

Reduce numerous and costly map finds in mesh fetch pipeline as well as one extremely expensive map key usage that was pointless

This reverts commit 964b8554.

This reverts commit e01b8b98.

This reverts commit 74288100.

This reverts commit dd782497.

This reverts commit 32cf7894.

This reverts commit e1bf5b07.

This reverts commit f6ba7b06.

This reverts commit 2f964c0a.

This reverts commit a3f771d5.