Enable Unity to catch iMSTK fatal messages and failed checks

See merge request iMSTK/iMSTK!823

DOC: update readme

See merge request iMSTK/iMSTK!825

PROC: PR checklist update license header item

See merge request iMSTK/iMSTK!831

In the PR checklist, change 'verify the header' to
'verify the license header' to provide a more precise description
of the task.

REFAC: Rename MeshToMeshBruteForceCD to ClosedSurfaceMeshToMeshCD

See merge request iMSTK/iMSTK!828

PointSet Cylinder collision detection

See merge request iMSTK/iMSTK!826

IO and Texture Fix

See merge request iMSTK/iMSTK!822

Removed reference to Visual studio 15
Added reminder not to build under DEBUG

Adds the except.i file where we can declare functions that we want exceptions
to be caught, as this might impact performance we should be selective as to
which functions are noted here

ENH: Binary Msh reader & ascii refactor

See merge request iMSTK/iMSTK!819

The includes had been included transitively from somewhere inside the logger infrastructure

REFAC: Improve comments, modern c++, couple other minor improvements, add hexahedral mesh test, tests validate contents

ENH: Add const begin/end to data array

See merge request iMSTK/iMSTK!818

ENH: Add simple example to use for onboarding work

See merge request iMSTK/iMSTK!817

BUG: Various fixes

See merge request iMSTK/iMSTK!820

Fixes a shutdown bug in X

See merge request iMSTK/iMSTK!815

BUG: Update install project test for renderless mode testing

See merge request iMSTK/iMSTK!816