feat: ui sprites + openxr skybox

Cargo.toml

@@ -33,7 +33,9 @@ libc = "0.2.155"
 libloading = "0.8.3"
 log = "0.4.21"
 once_cell = "1.19.0"
-openxr = { version = "0.17.1", features = ["linked"], optional = true }
+openxr = { git = "https://github.com/galister/openxrs", rev = "af4a55d", features = [
+  "linked",
+], optional = true }
 ovr_overlay = { features = [
   "ovr_input",
   "ovr_system",
@@ -62,6 +64,9 @@ xkbcommon = { version = "0.7.0" }
 xcb = { version = "1.4.0", optional = true, features = [
   "as-raw-xcb-connection",
 ] }
+image_dds = { version = "0.5.1", default-features = false, features = [
+  "ddsfile",
+] }
 
 [features]
 default = ["openvr", "openxr", "osc", "x11", "wayland"]