First pass for rewriting the build system

* Refactored all CMake files
* Started working on compiling shaders to header files in CMake

Signed-off-by: Fabian Sauter <sauter.fabian@mailbox.org>

test/shaders/Utils.hpp

@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: Apache-2.0
+
+#pragma once
+
+#include <cstdint>
+#include <string>
+#include <vector>
+
+/**
+ * Compile a single glslang source from string value. This is only meant
+ * to be used for testing as it's non threadsafe, and it had to be removed
+ * from the glslang dependency and now can only run the CLI directly due to
+ * license issues: see https://github.com/KomputeProject/kompute/pull/235
+ *
+ * @param source An individual raw glsl shader in string format
+ * @return The compiled SPIR-V binary in unsigned int32 format
+ */
+std::vector<uint32_t>
+compileSource(const std::string& source);