- Separated Platform and Compiler Dependent Behaviour into CMake scripts

- Implemented Basic Platform Interfaces
 - Implemented partial Linux platform and Wayland Display.
 - Implemented Dependencies for the above
   - map
     - set
       - optional
     - pair

TODO: threading

include/fennec/lang/hashing.h

@@ -0,0 +1,89 @@
+// =====================================================================================================================
+//  fennec, a free and open source game engine
+//  Copyright © 2025  Medusa Slockbower
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+// =====================================================================================================================
+
+#ifndef FENNEC_LANG_HASHING_H
+#define FENNEC_LANG_HASHING_H
+
+#include <fennec/lang/types.h>
+#include <fennec/lang/type_traits.h>
+
+namespace fennec
+{
+
+///
+/// \brief Struct for hashing types, there is no default hashing function
+/// \tparam Key The type to hash
+template<typename Key> struct hash;
+
+// Murmur3 Hash for 64-bit ints
+template<>
+struct hash<uint64_t> {
+	using type_t = uint64_t;
+	constexpr size_t operator()(uint64_t x) const {
+		// Murmur3
+		x ^= x >> 33U;
+		x *= 0xff51afd7ed558ccd;
+		x ^= x >> 33U;
+		x *= 0xc4ceb9fe1a85ec53;
+		x ^= x >> 33U;
+		return x;
+	}
+};
+
+// Wrapper for casting ints
+template<typename IntT>
+	requires is_integral_v<IntT>
+struct hash<IntT> : hash<uint64_t> {
+	using type_t = IntT;
+};
+
+// Wrapper for pointers
+template<typename PtrT>
+	requires is_pointer_v<PtrT>
+struct hash<PtrT> : hash<uintptr_t> {
+};
+
+// Float
+template<>
+struct hash<float> : hash<uint32_t> {
+	constexpr size_t operator()(float x) const {
+		return hash<uint32_t>::operator()(bit_cast<uint32_t>(x));
+	}
+};
+
+template<>
+struct hash<double> : hash<uint64_t> {
+	constexpr size_t operator()(double x) const {
+		return hash<uint64_t>::operator()(bit_cast<uint64_t>(x));
+	}
+};
+
+
+///
+/// \brief Pairs two hashes
+/// \param x first hash
+/// \param y second hash
+/// \returns a pairing of the two hashes
+constexpr size_t pair_hash(size_t x, size_t y) {
+	// Szudzik Pairing
+	return (x >= y ? (x * x) + x + y : (y * y) + x);
+}
+
+}
+
+#endif // FENNEC_LANG_HASHING_H