make features of `\UseTblrLibrary{amsmath}` enable on `physics` package

[Firestar-Reimu]

Each of the environments is similar to the environment without + prefix in its name, but has default rowsep=2pt just as tblr environment.

I want this feature also enabled on physics, like:

\mqty \bmqty \mdet \imat etc.

[muzimuzhi]

These physics matrix macros breaks tabularray's requirement on table-like environment content, that & and \\ must be seen explicitly.

Currently the only supported way to generate cells is by using outer key evaluate, provided by functional library. But amsmath-derived environments like +pmatrix accepts inner keys only, in form of optional argument of environment.

Also to support \mqty and friends, tabularray lacks the ability to manipulate structure of table cells.

[lvjr]

Anyone can write a new package for this feature. But I need to keep tabularray minimal.