[Toponaming] create ElementMap class (#9175)

* Copypaste ElementMap
* Add MappedNameRef
* Fix missing include
* Copypaste `findTagInElementName`
* fix error introduced _somewhere_
* refactor toponaming constants
* Move `findTagInElementName` in `MappedName`
* reintroduce workaround to compile ElementMap
* Added missing functions copied from complexgeodata
* fix last compile errors, reorder and format files
* remove recursive refs to ComplexGeoData
* Add more comments
* fixed comments and added tests
* added FIXME, make functions private, misc fixes
* Move static functions from complexGeoData to PostfixStringReferences. Rename to ElementNamingUtils
* Fix broken includes due to previous change
* Revert constants from string to const char*
* added childmap tests and made hasher public
* Make functions private
* Added remaining tests
* removed bool return from `erase` functions
* fix missing appexport

Co-authored-by: John Dupuy <jdupuy98@gmail.com>

src/App/DocumentObject.cpp

@@ -34,7 +34,7 @@
 #include <Base/Writer.h>
 
 #include "Application.h"
-#include "ComplexGeoData.h"
+#include "ElementNamingUtils.h"
 #include "Document.h"
 #include "DocumentObject.h"
 #include "DocumentObjectExtension.h"
@@ -1094,7 +1094,7 @@ DocumentObject *DocumentObject::resolve(const char *subname,
     // following it. So finding the last dot will give us the end of the last
     // object name.
     const char *dot=nullptr;
-    if(Data::ComplexGeoData::isMappedElement(subname) ||
+    if(Data::isMappedElement(subname) ||
        !(dot=strrchr(subname,'.')) ||
        dot == subname) 
     {
@@ -1117,7 +1117,7 @@ DocumentObject *DocumentObject::resolve(const char *subname,
             if(!elementMapChecked) {
                 elementMapChecked = true;
                 const char *sub = dot==subname?dot:dot+1;
-                if(Data::ComplexGeoData::isMappedElement(sub)) {
+                if(Data::isMappedElement(sub)) {
                     lastDot = dot;
                     if(dot==subname) 
                         break;