added Financial command type

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35416 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
fixed missing cell format call in Desktop

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35417 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
fixed missing end tag in spreadsheet xml

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35418 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e