data: database storage

* replaced storage by a new version that utilizes sqlite for persistence.
* added SqliteStorage to manage direct access to the database.
* added testsuit for sqlite.
* slimmed down the protected interface of the storage.
* changed tests in StorageTestSuit to avoid using protected methods of the storage.
* added functions to begin and commit a transaction to the storage.
* removed GraphFilterTestSuite.
* removed GraphFilterConductorTestSuite.
* added Node and Edge constructor that takes id as parameter
* added constructor for TokenComponentNameCached that accepts NameHierarchy as parameter
* added TokenLocation constructor that takes locationId as parameter.
* created respective construction functions in TokenLocatonLine, -File and -Collection.

fortune cookie message = Recognition will come from unexpected sources.

src/lib/data/location/TokenLocationCollection.cpp

@@ -68,6 +68,30 @@ TokenLocation* TokenLocationCollection::addTokenLocation(
 	return location;
 }
 
+
+
+
+TokenLocation* TokenLocationCollection::addTokenLocation(
+	Id locationId, Id tokenId, const FilePath& filePath,
+	unsigned int startLineNumber, unsigned int startColumnNumber,
+	unsigned int endLineNumber, unsigned int endColumnNumber)
+{
+	if (startLineNumber > endLineNumber || (startLineNumber == endLineNumber && startColumnNumber > endColumnNumber))
+	{
+		LOG_ERROR("Can't create TokenLocation with wrong boundaries.");
+		return nullptr;
+	}
+
+	TokenLocationFile* file = createTokenLocationFile(filePath);
+	TokenLocation* location =
+		file->addTokenLocation(locationId, tokenId, startLineNumber, startColumnNumber, endLineNumber, endColumnNumber);
+
+	m_locations.emplace(location->getId(), location);
+	return location;
+}
+
+
+
 void TokenLocationCollection::removeTokenLocation(TokenLocation* location)
 {
 	if (!findTokenLocationById(location->getId()))