v1.2.0 - Trident, Assistant Mode, Previous Model Memory, Fixes

Added the Trident, an agent that explores multiple prongs and retries on cull to save inference cost and generate long texts. Added Assistant Mode, allowing assistant models to be used for continuations. Added memory for previous models to help with new assistant mode. Miscellaneous fixes.

Mac users must run in Terminal:

xattr -cr /Applications/Helm.app

Once after install.