Moved shared store code to app/shared.

[tonyanziano]

Fixes #2038

===

Basically moved all reducer and action code to packages/app/shared/state.

So 99% of this PR is changing imports from:

import { closeBot } from '../../state/actions/botActions'
import { bot } from '../../state/reducers/bot';

to

import { bot, closeBot } from '@bfemulator/app-shared';

350 files... whoops 😅

[coveralls]

Coverage decreased (-1.6%) to 67.983% when pulling 64d0eb7 on toanzian/state into 3b1c824 on master.

[tonyanziano]

I didn't really add any new code, I just deleted a bunch of duplicate tested code and I believe that's why the coverage dropped:

Before:

2633 of 4488 branches covered (58.67%)

After:

2428 of 4267 branches covered (56.9%)

[srinaath]

This PR is awesome @tonyanziano . So much redundancy removed