Wrote Toy_Parser with minimal features, tests missing

It's too late at night, so I'm packing this up with only a dummy warning
message for the tests. I'll keep going tomorrow, hopefully.

source/toy_parser.h

@@ -0,0 +1,21 @@
+#pragma once
+
+#include "toy_common.h"
+#include "toy_memory.h"
+#include "toy_lexer.h"
+#include "toy_ast.h"
+
+typedef struct Toy_Parser {
+	Toy_Lexer* lexer;
+
+	//last two outputs
+	Toy_Token current;
+	Toy_Token previous;
+
+	bool error;
+	bool panic; //currently processing an error
+} Toy_Parser;
+
+TOY_API void Toy_bindParser(Toy_Parser* parser, Toy_Lexer* lexer);
+TOY_API Toy_Ast* Toy_scanParser(Toy_Bucket** bucket, Toy_Parser* parser);
+TOY_API void Toy_resetParser(Toy_Parser* parser);