Integrate With New 0.62 View Events

[NickGerleman]

0.62 added:

• BlurEvent,
• FocusEvent,
• MouseEvent,

MouseEvent directly overlaps with our special version. It seems like these might not actually be implemented to do anything in OSS RN right now though? Followup investigation is needed.

[chrisglein]

These don't appear to be in the docs: https://reactnative.dev/docs/view
@kikisaints you've been interacting with FB over the Pressable API - why were these ones not added to the docs? Is it on a list that hasn't been updated?
@harinikmsft This seems like something we should raise in the next sync.

[harinikmsft]

@NickGerleman , @kmelmon - would one of you be able to unearth the actual commits that brought these changes in? Per the latest sync, it is not clear whether these events are fully baked and why they were introduced.

Given the ambiguity on this and the fact that they are net new (non-breaking for windows apps), we should be ok to reconcile after 0.62 preview is ready. Moving to next milestone.