* Reenable math validator tests
* Introduce $wgMathUseRestBase which defaults to true
and determines if mathoid is used via RESTbase or directly
* The effect of this change can be tested by setting $wgMathUseRestBase
to false, and then creating a new statement of a property with type math.
One should see a connection to mathoid for every new string and one should
also see the WAN cache for the check endpoint to fill up. Note that
setting WANObject cache to the database simplifies the investigation
of the WAN cache content.
Bug: T274436
Change-Id: I40109e9e09464da78bf855646fb800ee87c1ea67
Introduce new namespace \MediaWiki\Extension\Math\ and move checking
code to this new namespace.
Note, this commit is the first step of Ifd89e2d9cb30fa15cc318f077b434207ed6b7214
Bug: T252390, T187154
Change-Id: I8c93f4b21d4a72ef2d52d4774d69e4ef55d037ec
