[Swift Bindings] Remove loading dylib during bindings projections

[jkurdek]

Currently during bindings generations a dylib is loaded to provide information about types. Among others it is queried to provide blittability, size, stride and alignment. Calling into dylib during binding time is not secure and can be problematic when generating bindings for a different platform. We should implement an algorithm which will provide us with information about types without loading a dylib.

Steps:

• Calculate size, stride, alignment
• Determine blittability
• Determine frozenness