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, 61 deletions

diff --git a/3rdparty/glm/source/test/ext/ext_quaternion_common.cpp b/3rdparty/glm/source/test/ext/ext_quaternion_common.cpp
deleted file mode 100644
index 861aa65..0000000
--- a/3rdparty/glm/source/test/ext/ext_quaternion_common.cpp
+++ /dev/null
@@ -1,61 +0,0 @@
-#include <glm/ext/vector_float3.hpp>
-#include <glm/ext/quaternion_common.hpp>
-#include <glm/ext/quaternion_float.hpp>
-#include <glm/ext/quaternion_relational.hpp>
-#include <glm/ext/quaternion_trigonometric.hpp>
-#include <glm/ext/scalar_constants.hpp>
-#include <glm/ext/scalar_relational.hpp>
-
-static int test_conjugate()
-{
-	int Error = 0;
-
-	glm::quat const A(glm::vec3(1, 0, 0), glm::vec3(0, 1, 0));
-	glm::quat const C = glm::conjugate(A);
-	Error += glm::any(glm::notEqual(A, C, glm::epsilon<float>())) ? 0 : 1;
-
-	glm::quat const B = glm::conjugate(C);
-	Error += glm::all(glm::equal(A, B, glm::epsilon<float>())) ? 0 : 1;
-
-	return Error;
-}
-
-static int test_mix()
-{
-	int Error = 0;
-
-	glm::quat const Q1(glm::vec3(1, 0, 0), glm::vec3(1, 0, 0));
-	glm::quat const Q2(glm::vec3(1, 0, 0), glm::vec3(0, 1, 0));
-
-	{
-		glm::quat const Q3 = glm::mix(Q1, Q2, 0.5f);
-		float const F3 = glm::degrees(glm::angle(Q3));
-		Error += glm::equal(F3, 45.0f, 0.001f) ? 0 : 1;
-
-		glm::quat const Q4 = glm::mix(Q2, Q1, 0.5f);
-		float const F4 = glm::degrees(glm::angle(Q4));
-		Error += glm::equal(F4, 45.0f, 0.001f) ? 0 : 1;
-	}
-
-	{
-		glm::quat const Q3 = glm::slerp(Q1, Q2, 0.5f);
-		float const F3 = glm::degrees(glm::angle(Q3));
-		Error += glm::equal(F3, 45.0f, 0.001f) ? 0 : 1;
-
-		glm::quat const Q4 = glm::slerp(Q2, Q1, 0.5f);
-		float const F4 = glm::degrees(glm::angle(Q4));
-		Error += glm::equal(F4, 45.0f, 0.001f) ? 0 : 1;
-	}
-
-	return Error;
-}
-
-int main()
-{
-	int Error = 0;
-
-	Error += test_conjugate();
-	Error += test_mix();
-
-	return Error;
-}