erpt: reimplement the sysmodule (#875)

* erpt: reimplement the sysmodule

* fatal: update for latest bindings

* erpt: amend logic for culling orphan attachments

libraries/libstratosphere/include/stratosphere/fs/fs_save_data_management.hpp

@@ -26,4 +26,9 @@ namespace ams::fs {
     Result GetSaveDataFlags(u32 *out, SaveDataSpaceId space_id, SaveDataId id);
     Result SetSaveDataFlags(SaveDataId id, SaveDataSpaceId space_id, u32 flags);
 
+    Result GetSaveDataAvailableSize(s64 *out, SaveDataId id);
+    Result GetSaveDataJournalSize(s64 *out, SaveDataId id);
+
+    Result ExtendSaveData(SaveDataSpaceId space_id, SaveDataId id, s64 available_size, s64 journal_size);
+
 }

libraries/libstratosphere/include/stratosphere/fs/fs_sd_card.hpp

@@ -20,4 +20,6 @@ namespace ams::fs {
 
     Result MountSdCard(const char *name);
 
+    Result MountSdCardErrorReportDirectoryForAtmosphere(const char *name);
+
 }