data: Saving TokenLocations in Storage

This change adds structures for saving TokenLocations in the Storage and improves the location derival in the
ASTVisitor:
* TokenLocation saves an Id of a Token. For each Token two TokenLocations are created for both start- and endpoint. They
  keep a reference to each other and know whether they are start or end.
* TokenLocationLine saves all TokenLocations in a line and the lineNumber.
* TokenLocationFile saves all TokenLocationLines of a specific file and the filePath.
* TokenLocationCollection saves multiple TokenLocationFiles.
* TokenLocation can derive it's lineNumber and filePath through references to first TokenLocationLine and from there to
  TokenLocationFile.

src/lib/data/parser/ParseLocation.cpp

@@ -1,8 +1,14 @@
 #include "data/parser/ParseLocation.h"
 
-ParseLocation::ParseLocation(const std::string& file, unsigned int line, unsigned int column)
-	: file(file)
-	, line(line)
-	, column(column)
+ParseLocation::ParseLocation(
+	const std::string& filePath,
+	unsigned int startLineNumber, unsigned int startColumnNumber,
+	unsigned int endLineNumber, unsigned int endColumnNumber
+)
+	: filePath(filePath)
+	, startLineNumber(startLineNumber)
+	, startColumnNumber(startColumnNumber)
+	, endLineNumber(endLineNumber)
+	, endColumnNumber(endColumnNumber)
 {
 }