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, 104 deletions

diff --git a/3rdparty/glm/source/test/ext/ext_vector_bool1.cpp b/3rdparty/glm/source/test/ext/ext_vector_bool1.cpp
deleted file mode 100644
index 43eed57..0000000
--- a/3rdparty/glm/source/test/ext/ext_vector_bool1.cpp
+++ /dev/null
@@ -1,104 +0,0 @@
-#include <glm/ext/vector_bool1.hpp>
-#include <glm/ext/vector_bool1_precision.hpp>
-
-template <typename genType>
-static int test_operators()
-{
-	int Error = 0;
-
-	genType const A(true);
-	genType const B(true);
-	{
-		bool const R = A != B;
-		bool const S = A == B;
-		Error += (S && !R) ? 0 : 1;
-	}
-
-	return Error;
-}
-
-template <typename genType>
-static int test_ctor()
-{
-	int Error = 0;
-
-	glm::bvec1 const A = genType(true);
-
-	glm::bvec1 const E(genType(true));
-	Error += A == E ? 0 : 1;
-
-	glm::bvec1 const F(E);
-	Error += A == F ? 0 : 1;
-
-	return Error;
-}
-
-template <typename genType>
-static int test_size()
-{
-	int Error = 0;
-
-	Error += sizeof(glm::bvec1) == sizeof(genType) ? 0 : 1;
-	Error += genType().length() == 1 ? 0 : 1;
-	Error += genType::length() == 1 ? 0 : 1;
-
-	return Error;
-}
-
-template <typename genType>
-static int test_relational()
-{
-	int Error = 0;
-
-	genType const A(true);
-	genType const B(true);
-	genType const C(false);
-
-	Error += A == B ? 0 : 1;
-	Error += (A && B) == A ? 0 : 1;
-	Error += (A || C) == A ? 0 : 1;
-
-	return Error;
-}
-
-template <typename genType>
-static int test_constexpr()
-{
-#	if GLM_HAS_CONSTEXPR
-		static_assert(genType::length() == 1, "GLM: Failed constexpr");
-#	endif
-
-	return 0;
-}
-
-int main()
-{
-	int Error = 0;
-
-	Error += test_operators<glm::bvec1>();
-	Error += test_operators<glm::lowp_bvec1>();
-	Error += test_operators<glm::mediump_bvec1>();
-	Error += test_operators<glm::highp_bvec1>();
-
-	Error += test_ctor<glm::bvec1>();
-	Error += test_ctor<glm::lowp_bvec1>();
-	Error += test_ctor<glm::mediump_bvec1>();
-	Error += test_ctor<glm::highp_bvec1>();
-
-	Error += test_size<glm::bvec1>();
-	Error += test_size<glm::lowp_bvec1>();
-	Error += test_size<glm::mediump_bvec1>();
-	Error += test_size<glm::highp_bvec1>();
-
-	Error += test_relational<glm::bvec1>();
-	Error += test_relational<glm::lowp_bvec1>();
-	Error += test_relational<glm::mediump_bvec1>();
-	Error += test_relational<glm::highp_bvec1>();
-
-	Error += test_constexpr<glm::bvec1>();
-	Error += test_constexpr<glm::lowp_bvec1>();
-	Error += test_constexpr<glm::mediump_bvec1>();
-	Error += test_constexpr<glm::highp_bvec1>();
-
-	return Error;
-}