patterns: Added a few voxel model patterns (#74)

* patterns: added a few voxel model patterns

* patterns: updated qbcl

according to https://gist.github.com/tostc/7f049207a2e5a7ccb714499702b5e2fd

* readme: added new voxel format petterns to the readme

* tests: added vxl test file

* ccvxl: updated two fields

patterns/ccvxl.hexpat

@@ -0,0 +1,69 @@
+// Command and Conquer voxel model format
+
+struct vec4_s {
+    float x [[color("FF0000")]];
+    float y [[color("00FF00")]];
+    float z [[color("0000FF")]];
+    float w [[color("FFFF00")]];
+};
+
+struct vec3_s {
+    float x [[color("FF0000")]];
+    float y [[color("00FF00")]];
+    float z [[color("0000FF")]];
+};
+
+struct mat3x4_s {
+    vec4_s row[3];
+};
+
+struct name_s {
+	char buffer[16] [[color("EECCCC")]];
+};
+
+struct color_s {
+	u8 r;
+	u8 g;
+	u8 b;
+};
+
+struct vxl_limb_header_s {
+	name_s name;
+	s32 limb_number;
+	u32 _reserved1;
+	u32 _reserved2;
+};
+
+struct vxl_limb_tailer_s {
+	u32 span_start_offset;
+	u32 span_end_offset;
+	u32 span_data_offset;
+	float scale;
+	mat3x4_s matrix;
+	vec3_s min_bounds;
+	vec3_s max_bounds;
+	u8 xsize;
+	u8 ysize;
+	u8 zsize;
+	u8 normal_type;
+};
+
+struct vxl_s {
+	name_s name;
+	u32 palette_count;
+	u32 limb_count;
+	u32 tailer_count;
+	u32 body_size;
+	u8 remap_start_index;
+	u8 remap_end_index;
+	color_s internal_palette[256];
+	vxl_limb_header_s _headers[limb_count];
+	u8 body[body_size];
+	vxl_limb_tailer_s _tailers[limb_count];
+};
+
+struct frame_s {
+	mat3x4_s mat[hva.numNodes];
+};
+
+vxl_s vxl @0x00;