WIP - Broken Compile : Added pragma once and includes to all files + Parser fixes, and String improvements

Adding the pragma once and includes the files broke compilation, still diagnosing why.

- Some string functions were moved to the cpp, still need to do some more evaluation of it and the containers...
- Added support for forceinline and neverinline to parsing (untested)
- Added support for specifiers in operator cast such as explicit, inline/forceinline/neverinline, etc.
    - Before it only support const.
    - Still need to support volatile.
- Forceinline was not supported at all for tokenization, fixed that.

project/components/ast.hpp

@@ -1,3 +1,9 @@
+#pragma once
+#include "types.hpp"
+#include "temp/ecode.hpp"
+#include "temp/eoperator.hpp"
+#include "temp/especifier.hpp"
+
 struct AST;
 struct AST_Body;
 struct AST_Attributes;
@@ -163,10 +169,11 @@ struct AST
 	Code&       entry      ( u32 idx );
 	bool        has_entries();
 	bool        is_equal   ( AST* other );
-	String      to_string  ();
 	char const* type_str();
 	bool        validate_body();
 
+	neverinline String to_string();
+
 	template< class Type >
 	Type cast()
 	{
@@ -574,4 +581,3 @@ Define_CodeType( Var );
 #undef Using_Code
 
 #pragma endregion Code Types
-