public / sequelize

Resolves issue with acquire call which never finishes, resolve errors and connections and handle factory level error ourselves. Fixed issue with MSSQL / MySQL error out with resources currently not part of pool.

Fixed evict setting so idle connections are properly removed on time and improved documentation around connection manager and various options 

* docs(migration): explain how to use migrations

* docs(migration): storage, .sequelizerc

* docs(migrations): dynamic config, storage, ssl, url option, using env varibales

* docs(migrations): seeds and production tips

* docs: simplify queryInterface intro

* docs: QueryInterface API + seeding docs + styling

* docs: expose describe table to public

* refactor(abstruct.query-generator): Reduce complexity of abstruct query-generator whereItemQuery by

whereItemQuery had cyclic complexity of 85 reduced to 26 to make logic a bit easier to follow.
Logic is almost identical but at places where logic looked like an obvoius error it was tweeked, like -
	_traverseJSON had weird logic if the item was plain object -
		cast wast set by either path (ok) or the first value of the first property of an object (doesn't make sense)
		where value passed into whereItemQuery was in the main function scope causing it to accumulate properties on each iteration (doesn't make sense)
All test are passing with no issues but since there were minor logic changes there might be some edge cases needed to be addressed.
Though it's more resonable to assume changes will fix bugs related to those edge cases than cause them

* fix(abstract.query-generator): Fix discrepancies between postgres and sqlite casting and handling of

postgres and sqlite handle casting and JSONB formats a bit diffrently yet some previous commits
didn't took this changes into consideration when handling casting and didn't test casting properly

* fix(abstract.query-generator): Fix issue where not properly treating  plain js object values for JSON column

Fixes #3824 (again)

* fix(query): does not include primary key when grouping

When grouping a model that links through a belongsTo association the primaryKey is no longer automatically added to the attributes list.

* test(query): uses stricter type checks for primary key group tests

… using `.` #7742 (#7795)