Feature/reduce template code size

See merge request !7

Replace some shared_ptr by unique_ptr. These pointers were not really shared, but rather managed into a single object.
This change allows to significantly reduce the object code generated. Belcard library has been reduced by a factor of 2.5.

Reduce object code generated by templates. This leads a 50% reduce in belcard library as an example (debug symbol stripped).

Fix build issues with Visual Studio 2017

See merge request !6

make framework on macos

See merge request !5

added chmod to give exec rights on shared libs for ubuntu packaging

See merge request !4

chore(build): do not set CMAKE_INSTALL_LIBDIR and never with _libdir!

See merge request !3

No longer put the "-stdlib=libc++" build option since we now target Mac OS X 10.9.

See merge request !2

Add another 'make_fn' utility function

See merge request !1

This reverts commit 99686962.

This reverts commit dd8ebd9a.

fix(parser): rename belr_fatal to fatal (useless prefix and snake case ?) + export as public symbol on windows