part: implement some functions (windows & display)

part:
- remove mlx3ds_3dskey.h, instead use hid.h
- add definitions of:
  - mlx_init()
  - mlx_new_window()
  - mlx_clear_window()
  - mlx_destroy_window()
  - mlx_pixel_put()
  - mlx_new_image()
  - mlx_get_data_addr()
  - mlx_put_image_to_window()
  - mlx_destroy_image()

dev:
- Makefile: add rule check_headers
- Makefile: add variable FLAGS
    (call 'make rule FLAGS=flags'
	to add flags to compilation)
- add /dev/norm.sh: nicer norminette
- add tester in main(), and related utilsconsole.*

docs:
- make clear mlx_get_data_addr() docs

dev/norm.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+# Use the norminette but without all these rules that make coding harder.
+
+norminette | grep -v \
+"INVALID_HEADER
+VAR_DECL_START_FUNC
+EMPTY_LINE_FUNCTION
+TOO_MANY_ARGS
+TOO_MANY_FUNCS
+TOO_MANY_LINES
+PREPROC_CONSTANT
+MACRO_FUNC_FORBIDDEN
+GLOBAL_VAR_DETECTED
+WRONG_SCOPE_COMMENT
+MULT_DECL_LINE
+GOTO_FBIDDEN
+LABEL_FBIDDEN
+TERNARY_FBIDDEN"