LibNifalcon should link against ftd2xx and not libusb1
on Windows. Add ftd2xx as an external project (binaries).

Works with the newest versions of VRPN and LibNiFalcon

Correct comp linux

- Use CMake `CMAKE_CXX_STANDARD` to support C++11
- Check if `iMSTK_USE_OPENHAPTIC` is defined before using HDAPIDeviceClient in Sandbox
- Replace `itoa` (non standard) by `sprintf` in Sandbox
- Correct warnings in Sandbox

See merge request !90

itoa is not part of the standard library

Using CMAKE_CXX_STANDARD and THREADS_PREFER_PTHREAD_FLAG

Merge Refactoring into Master



See merge request !89

Merge Eti application into Refactoring



See merge request !88

- Fix workflow for PBD in SceneManager.cpp. Add/modify related functions for
PbdObject/PbdRigidObject/VirtualCoupleingPBDObject. It should work for the
most general case where collision/physics/visual meshes are different from
each other.
- Add LineMesh class and LineMeshRenderDelegate. Add support for LineMesh
class in imstkGeometry, imstkMesh, imstkRenderDelegate.

- Fix a bug for computeBoundingBox() in imstkMesh.
- Fix a bug for applying mapping in TetraTriangleMap.
- Fix a bug for computing the center of tetra in TetraTriangleMap.

	-Create PbdRigidObject class for objects that are not deformable but need
	to interact with deformable pbd objects.
	-Create VirtualCouplingPbdObject class, which is inherted from
	PbdRigidObject and TrackingController. The physics and colliding
	geometry(mesh) need to be translate/rotate manually to interact
	with deformable objects, which is different from existing
	VirtualCouplingObject class.

PBD examples not working properly due to issue related to mesh normals.

Conflicts:
	Base/Scene/imstkCollisionGraph.h
	Examples/Sandbox/main.cpp

Enforces style and place holders for comments in the pbd related code files

Style corrections2



See merge request !84

Add haptic device. Need to run in simulation mode, but rendering mesh in simulation mode is very low and results in huge amount of warnings

Adds basic plot generator scripts for vectors for Matlab and Matlibplot

Style enforcement and add comments over the entire code

Add OR Scene Objects and human models. Only one model can be assigned
texture now. Add test cases in Sandbox.

Deformable body sprint

Merging the deformable body sprint into refactoring branch

See merge request !81

Adds updateFunction to the NL system. Some style cleanup.

Trigger compilation error on macOSx