Missing tests for constructors and functions

[wusatosi]

Constructor:

• inplace_vector(initializer_list)
• inplace_vector()

Function:

• void resize(size_type sz, const T& c);

We should also explicitly test for bad_alloc throwing tests.

[wusatosi]

The constructors are tested in tests/beman/inplace_vector/container_requirements.test.cpp

[20162026]

resize test added in #100