Copy changes from the no-history fork, generated back in 2023

Original commit message:
> commit f138311d2d2e0cc9ba0496d523bb46f2c1c9fb73
> Author: rtk0c <[email protected]>
> Date:   Wed Sep 20 23:58:58 2023 -0700
>
>     Copy from the PlasticSCM repo, replace vendored glm wtih conan

In reality, this also introduced a few uncommitted changes in the
original PlasticSCM repo. See the modified and new files in this patch.

1 files changed, 0 insertions, 88 deletions

diff --git a/3rdparty/glm/source/test/gtx/gtx_intersect.cpp b/3rdparty/glm/source/test/gtx/gtx_intersect.cpp
deleted file mode 100644
index c4a1b2a..0000000
--- a/3rdparty/glm/source/test/gtx/gtx_intersect.cpp
+++ /dev/null
@@ -1,88 +0,0 @@
-#define GLM_ENABLE_EXPERIMENTAL
-#include <glm/glm.hpp>
-#include <glm/gtc/epsilon.hpp>
-#include <glm/gtx/intersect.hpp>
-
-int test_intersectRayPlane()
-{
-	int Error = 0;
-	glm::vec3 const PlaneOrigin(0, 0, 1);
-	glm::vec3 const PlaneNormal(0, 0, -1);
-	glm::vec3 const RayOrigin(0, 0, 0);
-	glm::vec3 const RayDir(0, 0, 1);
-
-	// check that inversion of the plane normal has no effect
-	{
-		float Distance = 0;
-		bool const Result = glm::intersectRayPlane(RayOrigin, RayDir, PlaneOrigin, PlaneNormal, Distance);
-		Error += glm::abs(Distance - 1.f) <= std::numeric_limits<float>::epsilon() ? 0 : 1;
-		Error += Result ? 0 : 1;
-	}
-	{
-		float Distance = 0;
-		bool const Result = glm::intersectRayPlane(RayOrigin, RayDir, PlaneOrigin, -1.f * PlaneNormal, Distance);
-		Error += glm::abs(Distance - 1.f) <= std::numeric_limits<float>::epsilon() ? 0 : 1;
-		Error += Result ? 0 : 1;
-	}
-
-	// check if plane is before of behind the ray origin
-	{
-		float Distance = 9.9999f; // value should not be changed
-		bool const Result = glm::intersectRayPlane(RayOrigin, RayDir, -1.f * PlaneOrigin, PlaneNormal, Distance);
-		Error += glm::abs(Distance - 9.9999f) <= std::numeric_limits<float>::epsilon() ? 0 : 1;
-		Error += Result ? 1 : 0; // there is no intersection in front of the ray origin, only behind
-	}
-
-	return Error;
-}
-
-int test_intersectRayTriangle()
-{
-	int Error = 0;
-
-	glm::vec3 const Orig(0, 0, 2);
-	glm::vec3 const Dir(0, 0, -1);
-	glm::vec3 const Vert0(0, 0, 0);
-	glm::vec3 const Vert1(-1, -1, 0);
-	glm::vec3 const Vert2(1, -1, 0);
-	glm::vec2 BaryPosition(0);
-	float Distance = 0;
-
-	bool const Result = glm::intersectRayTriangle(Orig, Dir, Vert0, Vert1, Vert2, BaryPosition, Distance);
-
-	Error += glm::all(glm::epsilonEqual(BaryPosition, glm::vec2(0), std::numeric_limits<float>::epsilon())) ? 0 : 1;
-	Error += glm::abs(Distance - 2.f) <= std::numeric_limits<float>::epsilon() ? 0 : 1;
-	Error += Result ? 0 : 1;
-
-	return Error;
-}
-
-int test_intersectLineTriangle()
-{
-	int Error = 0;
-
-	glm::vec3 const Orig(0, 0, 2);
-	glm::vec3 const Dir(0, 0, -1);
-	glm::vec3 const Vert0(0, 0, 0);
-	glm::vec3 const Vert1(-1, -1, 0);
-	glm::vec3 const Vert2(1, -1, 0);
-	glm::vec3 Position(2.0f, 0.0f, 0.0f);
-
-	bool const Result = glm::intersectLineTriangle(Orig, Dir, Vert0, Vert1, Vert2, Position);
-
-	Error += glm::all(glm::epsilonEqual(Position, glm::vec3(2.0f, 0.0f, 0.0f), std::numeric_limits<float>::epsilon())) ? 0 : 1;
-	Error += Result ? 0 : 1;
-
-	return Error;
-}
-
-int main()
-{
-	int Error = 0;
-
-	Error += test_intersectRayPlane();
-	Error += test_intersectRayTriangle();
-	Error += test_intersectLineTriangle();
-
-	return Error;
-}