Use GDNative API struct

godot/core/godotbase.nim

@@ -2,61 +2,6 @@
 
 import math
 
-type
-  Error* {.size: sizeof(cint), pure.} = enum
-    OK,
-    Failed,    ## Generic fail error
-    Unavailable,    ## What is requested is unsupported/unavailable
-    Unconfigured,   ## The object being used hasnt been properly set up yet
-    Unauthorized,   ## Missing credentials for requested resource
-    ParameterRangeError, ## Parameter given out of range (5)
-    OutOfMemory,  ## Out of memory
-    FileNotFound,
-    FileBadDrive,
-    FileBadPath,
-    FileNoPermission, ##  (10)
-    FileAlreadyInUse,
-    FileCantOpen,
-    FileCantWrite,
-    FileCantRead,
-    FileUnrecognized, ##  (15)
-    FileCorrupt,
-    FileMissingDependencies,
-    FileEOF,
-    CantOpen, ## Can't open a resource/socket/file
-    CantCreate,    ##  (20)
-    QueryFailed,
-    AlreadyInUse,
-    Locked, ## resource is locked
-    Timeout,
-    CantConnect, ##  (25)
-    CantResolve,
-    ConnectionError,
-    CantAquireResource,
-    CantFork,
-    InvalidData, ## Data passed is invalid	(30)
-    InvalidParameter, ## Parameter passed is invalid
-    AlreadyExists, ## When adding, item already exists
-    DoesNotExist, ## When retrieving/erasing, it item does not exist
-    DatabaseCantRead, ## Database is full
-    DatabaseCantWrite, ## Database is full	(35)
-    CompilationFailed,
-    MethodNotFound,
-    LinkFailed,
-    ScriptFailed,
-    CyclicLink, ##  (40)
-    InvalidDeclaration,
-    DuplicateSymbol,
-    PauseError,
-    Busy,
-    Skip, ##  (45)
-    Help,           ## user requested help!!
-    Bug,
-      ## a bug in the software certainly happened, due to a double
-      ## check failing or unexpected behavior.
-    PrinterOnFire, ## the parallel port printer is engulfed in flames
-    WTF ## shit happens, has never been used, though
-
 # math helpers
 
 const EPSILON = 0.00001'f32