* refactoring result codes
- Add a main enum who can handle some orphalin result codes and the default `ResultCode.Success` one.
- Add sub-enum by services when it's needed.
- Remove some empty line.
- Recast all service calls to ResultCode.
- Remove some unneeded static declaration.
- Delete unused `NvHelper` class.
* NvResult is back
* Fix
* Implement contentmanager and related services
* small changes
* read system firmware version from nand
* add pfs support, write directoryentry info for romfs files
* add file check in fsp-srv:8
* add support for open fs of internal files
* fix filename when accessing pfs
* use switch style paths for contentpath
* close nca after verifying type
* removed publishing profiles, align directory entry
* fix style
* lots of style fixes
* yasf(yet another style fix)
* yasf(yet another style fix) plus symbols
* enforce path check on every fs access
* change enum type to default
* fix typo