Add a new tab in the launcher app to handle code patch options. #5519

This is an implementation for [Issue #5519 (closed)] (#5519 (closed)) Add tabs in the advanced of the launcher app to handle code patch options. Dispatch already existing options into the new tabs

Some options are renamed to match the ones in the Morrowind Code Patch In Visuals tab: I added two checkbox for existing options: 'View over the shoulder' and 'Turn to movement direction' I added a checkbox 'Distant land' which set the two options 'distant terrain' and 'object paging' options I added a checkbox 'Active grid object paging' which set the corresponding option To allow better experience to player who want to try distant land, I also added 'Viewing distance' which allow to choose how many cells are displayed. It control the 'viewing distance' option but expressed in number of cells (as in Morrowind Graphics Extender)