Refactor error types and error reporting

zion/include/zerrors.h

@@ -1,8 +1,16 @@
 #pragma once
 
+#include <stdint.h>
+
 #define Z_OK 0x0
-#define ZE_NOT_FOUND 0x1
-#define ZE_INVALID 0x2
-#define ZE_DENIED 0x4
-#define ZE_UNIMPLEMENTED 0x8
-#define ZE_BUFF_SIZE 0x10
+#define Z_ERR_NOT_FOUND 0x1
+#define Z_ERR_INVALID 0x2
+#define Z_ERR_DENIED 0x3
+#define Z_ERR_UNIMPLEMENTED 0x4
+#define Z_ERR_BUFF_SIZE 0x05
+
+#define Z_ERR_CAP_NOT_FOUND 0x100
+#define Z_ERR_CAP_TYPE 0x101
+#define Z_ERR_CAP_DENIED 0x102
+
+typedef uint64_t z_err_t;