BNF improvements towards better OpenCypher support: Multipart query (#109)

* MultiPartQuery support (WIP)

* Function call inspection test fixes

* Bnf fix for formatting test

* invokeAutoPopup replaced with checkAutoPopup (deprecation issue)

* WIP (add autocomplete items from current file)

* BNF fixes for label and relationship reference contributor tests

* Removed old unnecessary comment

* TypedHandlerDelegate renamed to CypherTypedHandlerDelegate

Author: ex3m1024

graph-database-support-plugin/src/main/resources/META-INF/plugin.xml

@@ -164,6 +164,8 @@
                          implementationClass="com.neueda.jetbrains.plugin.graphdb.language.cypher.inspections.CypherFunctionCallInspection"/>
 
         <codeInsight.parameterInfo language="Cypher" implementationClass="com.neueda.jetbrains.plugin.graphdb.language.cypher.editor.CypherParameterInfoHandler"/>
+        
+        <typedHandler implementation="com.neueda.jetbrains.plugin.graphdb.language.cypher.editor.CypherTypedHandlerDelegate" />
 
         <codeStyleSettingsProvider implementation="com.neueda.jetbrains.plugin.graphdb.jetbrains.formatter.CypherCodeStyleSettingsProvider"/>
         <langCodeStyleSettingsProvider implementation="com.neueda.jetbrains.plugin.graphdb.jetbrains.formatter.CypherLanguageCodeStyleSettingsProvider"/>