wip: New assets system tm

Builds gc-eu-mq-dbg OK from clean after
1) make setup
2) python3 -m tools.assets.extract -j
3) replace 0x80A8E610 with sShadowTex in extracted/gc-eu-mq-dbg/assets/overlays/ovl_En_Jsjutan/sShadowMaterialDL.inc.c
4) make various symbols in extracted data like sTex static

tools/assets/bin2c/bin2c.c

@@ -0,0 +1,86 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <stdbool.h>
+
+int main(int argc, char** argv) {
+    if (argc != 2) {
+    usage:
+        fprintf(stderr, "%s <u8|u32|u64>\n", argv[0]);
+        return EXIT_FAILURE;
+    }
+
+    char* bytes_per_elem_str = argv[1];
+    struct {
+        size_t num;
+        char* str;
+    } bytes_per_elem_arg_info[] = {
+        { 1, "u8" },
+        { 4, "u32" },
+        { 8, "u64" },
+    };
+    size_t bytes_per_elem = 0;
+    for (int i = 0; i < 3; i++) {
+        if (strcmp(bytes_per_elem_arg_info[i].str, bytes_per_elem_str) == 0) {
+            bytes_per_elem = bytes_per_elem_arg_info[i].num;
+        }
+    }
+    if (bytes_per_elem == 0) {
+        goto usage;
+    }
+
+    FILE* in_bin = stdin;
+    FILE* out_c = stdout;
+
+    fprintf(out_c, "{\n");
+
+    int cur_line_nelems = 0;
+
+    while (true) {
+        uint8_t buffer[bytes_per_elem];
+        size_t nread = fread(buffer, 1, bytes_per_elem, in_bin);
+
+        if (nread == 0 && feof(in_bin)) {
+            break;
+        }
+
+        if (nread != bytes_per_elem) {
+            if (feof(in_bin)) {
+                fprintf(stderr, "Input has unaligned size\n");
+            } else {
+                fprintf(stderr, "Error reading from input\n");
+            }
+            return EXIT_FAILURE;
+        }
+
+        if (cur_line_nelems == 0) {
+            fprintf(out_c, "    ");
+        }
+
+        fprintf(out_c, "0x");
+        for (size_t i = 0; i < bytes_per_elem; i++) {
+            fprintf(out_c, "%02X", buffer[i]);
+        }
+        fprintf(out_c, ",");
+
+        cur_line_nelems++;
+
+        int bytes_per_line = bytes_per_elem == 1 ? 0x10 : 0x20;
+
+        if (cur_line_nelems * bytes_per_elem >= bytes_per_line) {
+            fprintf(out_c, "\n");
+            cur_line_nelems = 0;
+        } else {
+            fprintf(out_c, " ");
+        }
+    }
+
+    if (cur_line_nelems != 0) {
+        fprintf(out_c, "\n");
+    }
+
+    fprintf(out_c, "}\n");
+
+    return EXIT_SUCCESS;
+}