add collision and inverse dynamics unit tests to cmake, .travis.yml and appveyor.yml

(more unit tests will follow, once this setup works)

test/InverseDynamics/CMakeLists.txt

@@ -0,0 +1,30 @@
+
+ 
+ 
+INCLUDE_DIRECTORIES(
+	.
+	../../src
+	../gtest-1.7.0/include
+	../../Extras/InverseDynamics
+)
+
+
+#ADD_DEFINITIONS(-DGTEST_HAS_PTHREAD=1)
+ADD_DEFINITIONS(-D_VARIADIC_MAX=10)
+
+LINK_LIBRARIES(
+ BulletInverseDynamicsUtils BulletInverseDynamics Bullet3Common LinearMath gtest
+)
+
+
+	ADD_EXECUTABLE(Test_BulletInverseDynamics
+		test_invdyn_kinematics.cpp
+	)
+
+ADD_TEST(Test_BulletInverseDynamics_PASS Test_BulletInverseDynamics)
+
+IF (INTERNAL_ADD_POSTFIX_EXECUTABLE_NAMES)
+			SET_TARGET_PROPERTIES(Test_Collision PROPERTIES  DEBUG_POSTFIX "_Debug")
+			SET_TARGET_PROPERTIES(Test_Collision PROPERTIES  MINSIZEREL_POSTFIX "_MinsizeRel")
+			SET_TARGET_PROPERTIES(Test_Collision PROPERTIES  RELWITHDEBINFO_POSTFIX "_RelWithDebugInfo")
+ENDIF(INTERNAL_ADD_POSTFIX_EXECUTABLE_NAMES)