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, 59 deletions

diff --git a/3rdparty/glm/source/test/gtx/gtx_vector_angle.cpp b/3rdparty/glm/source/test/gtx/gtx_vector_angle.cpp
deleted file mode 100644
index 4e8172b..0000000
--- a/3rdparty/glm/source/test/gtx/gtx_vector_angle.cpp
+++ /dev/null
@@ -1,59 +0,0 @@
-#define GLM_ENABLE_EXPERIMENTAL
-#include <glm/gtc/constants.hpp>
-#include <glm/gtx/vector_angle.hpp>
-#include <limits>
-
-int test_angle()
-{
-	int Error = 0;
-	
-	float AngleA = glm::angle(glm::vec2(1, 0), glm::normalize(glm::vec2(1, 1)));
-	Error += glm::epsilonEqual(AngleA, glm::pi<float>() * 0.25f, 0.01f) ? 0 : 1;
-	float AngleB = glm::angle(glm::vec3(1, 0, 0), glm::normalize(glm::vec3(1, 1, 0)));
-	Error += glm::epsilonEqual(AngleB, glm::pi<float>() * 0.25f, 0.01f) ? 0 : 1;
-	float AngleC = glm::angle(glm::vec4(1, 0, 0, 0), glm::normalize(glm::vec4(1, 1, 0, 0)));
-	Error += glm::epsilonEqual(AngleC, glm::pi<float>() * 0.25f, 0.01f) ? 0 : 1;
-
-	return Error;
-}
-
-int test_orientedAngle_vec2()
-{
-	int Error = 0;
-	
-	float AngleA = glm::orientedAngle(glm::vec2(1, 0), glm::normalize(glm::vec2(1, 1)));
-	Error += glm::epsilonEqual(AngleA, glm::pi<float>() * 0.25f, 0.01f) ? 0 : 1;
-	float AngleB = glm::orientedAngle(glm::vec2(0, 1), glm::normalize(glm::vec2(1, 1)));
-	Error += glm::epsilonEqual(AngleB, -glm::pi<float>() * 0.25f, 0.01f) ? 0 : 1;
-	float AngleC = glm::orientedAngle(glm::normalize(glm::vec2(1, 1)), glm::vec2(0, 1));
-	Error += glm::epsilonEqual(AngleC, glm::pi<float>() * 0.25f, 0.01f) ? 0 : 1;
-
-	return Error;
-}
-
-int test_orientedAngle_vec3()
-{
-	int Error = 0;
-	
-	float AngleA = glm::orientedAngle(glm::vec3(1, 0, 0), glm::normalize(glm::vec3(1, 1, 0)), glm::vec3(0, 0, 1));
-	Error += glm::epsilonEqual(AngleA, glm::pi<float>() * 0.25f, 0.01f) ? 0 : 1;
-	float AngleB = glm::orientedAngle(glm::vec3(0, 1, 0), glm::normalize(glm::vec3(1, 1, 0)), glm::vec3(0, 0, 1));
-	Error += glm::epsilonEqual(AngleB, -glm::pi<float>() * 0.25f, 0.01f) ? 0 : 1;
-	float AngleC = glm::orientedAngle(glm::normalize(glm::vec3(1, 1, 0)), glm::vec3(0, 1, 0), glm::vec3(0, 0, 1));
-	Error += glm::epsilonEqual(AngleC, glm::pi<float>() * 0.25f, 0.01f) ? 0 : 1;
-
-	return Error;
-}
-
-int main()
-{
-	int Error(0);
-	
-	Error += test_angle();
-	Error += test_orientedAngle_vec2();
-	Error += test_orientedAngle_vec3();
-
-	return Error;
-}
-
-