Platform Environment API: Changes

The following header file(s) have changed between 3.1 and 3.2

**Table 1:** pathinfo.h
Type	Class	Change
New public enum	`PathInfo`	`TSystemPaths`
New public method	`PathInfo`	`IMPORT_C static const TDesC& GetPath( TInt aPath );`
New public method	`PathInfo`	`IMPORT_C static TInt GetRootPath( TDes& aRootPath, TInt aDrive );`
New public method	`PathInfo`	`IMPORT_C static TInt GetFullPath( TDes& aFullPath, TInt aDrive, TInt aPath );`
New public method	`PathInfo`	`IMPORT_C static TInt PathType( const TDesC& aFullPath );`
New public method	`PathInfo`	`IMPORT_C static CDesCArray* GetListOfPathsLC( TInt aDrive );`
New public method	`PathInfo`	`IMPORT_C static CDesCArray* GetListOfPathsL( TInt aDrive );`