feat(assets): setup assets for resource manager

assets are broken into static (compiled into the binary) and dynamic (handled by the resource manager). All static assets should define a meson.build, all dynamic assets must have handlers written in src/resource/resourceManager and resourceManagerTypes

BREAKING CHANGE:

assets/static/const/format.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+if [ "$#" -ne 2 ]; then
+    echo "Usage: $0 <input_file> <output_file>"
+    exit 1
+fi
+input_file="$1"
+output_file="$2"
+printf 'const char embeddedConstants[] = R"(' > "$output_file"
+cat "$input_file" >> "$output_file"
+printf ')";\n' >> "$output_file"