Add IgnoreCase Keyword matcher for simple parser

src/Parser/Parsing/Simple/Matcher/SimpleMatcherKeywordIgnoreCase.h

@@ -0,0 +1,17 @@
+#pragma once
+
+#include <string>
+
+#include "Parsing/Simple/SimpleParserValue.h"
+#include "Parsing/Matcher/AbstractMatcher.h"
+
+class SimpleMatcherKeywordIgnoreCase final : public AbstractMatcher<SimpleParserValue>
+{
+    std::string m_value;
+
+protected:
+    MatcherResult<SimpleParserValue> CanMatch(ILexer<SimpleParserValue>* lexer, unsigned tokenOffset) override;
+
+public:
+    explicit SimpleMatcherKeywordIgnoreCase(std::string value);
+};