Add buffers to `_init_weights` for ALL models (#42309)
* start
* all until clvp
* all until gpt2
* until lfm2_moe
* all until seamless
* finally all first batch
* style
* Copied from
* apply modulars
* small fixes
* add test
* name
* fix
* more
* fix typos
* more
* fix
* typo
* fix
* revert annoying dates auto change....
* fixes
* fix
* fix
* oupsi
* fixes
* start more fixes
* fix
* add norm buffers
* modular
* improve
* copies
* fixes
* fix advanced rope modules
* more and more
* improve error
* fix
* fixes
* fix
* fixes
* post rebase
* last fix
* really last fix
* stupid layoutlm2 with its external lib
* stupid layoutlmv2 finally....
* create functions
