Merge Assert, StaticAssert, ThrowException into Core

[Kojoley]

Recently Core grew with additional dependencies on StaticAssert (in 1.76) and ThrowException (in the next release), previously it was only depending on Assert and Config. That made a lot of libraries checkout the same four repositories, three of them containing only a few headers. Merging into a single dependency will affect mostly positive about 100 libraries and negative 1: StlInterfaces (depends on Assert, and will on Core).

There is some difference in documentation format used (95924b1#r58137316), but that should be solvable.

Headers list:

StaticAssert (depends on Config)

• boost/static_assert.hpp

Assert (depends on Config)

• boost/assert.hpp
• boost/current_function.hpp
• boost/assert/source_location.hpp

ThrowException (depends on Assert and Config)

• boost/throw_exception.hpp
• boost/exception/exception.hpp