feat(imaging): add pure-Rust Skia backend (#112)

deny.toml

@@ -39,6 +39,8 @@ allow = []
 allow-workspace = true
 deny = []
 skip = [
+    { crate = "bit-vec@0.8.0", reason = "Approved pinned skia-rs shader parser compatibility line" },
+    { crate = "bitflags@1.3.2", reason = "Approved pinned pure-Rust PNG compatibility line" },
     { crate = "block-buffer@0.10.4", reason = "Approved RustCrypto digest 0.10 compatibility line" },
     { crate = "cfg_aliases@0.1.1", reason = "Approved older nix build-helper line" },
     { crate = "const-oid@0.9.6", reason = "Approved DTLS certificate compatibility line" },
@@ -47,10 +49,12 @@ skip = [
     { crate = "digest@0.10.7", reason = "Approved legacy hash and WebRTC compatibility line" },
     { crate = "getrandom@0.2.17", reason = "Approved elliptic-curve entropy compatibility line" },
     { crate = "getrandom@0.3.4", reason = "Approved rand 0.9 entropy compatibility line" },
+    { crate = "hashbrown@0.16.1", reason = "Approved pinned skia-rs geometry compatibility line" },
     { crate = "nix@0.28.0", reason = "Approved machine-address Unix compatibility line" },
     { crate = "nom@7.1.3", reason = "Approved Skia bindgen parser compatibility line" },
     { crate = "rand_core@0.6.4", reason = "Approved elliptic-curve random compatibility line" },
     { crate = "rand_core@0.9.5", reason = "Approved rand 0.9 compatibility line" },
+    { crate = "rustc-hash@1.1.0", reason = "Approved pinned skia-rs shader parser compatibility line" },
     { crate = "sha2@0.10.9", reason = "Approved WebRTC RustCrypto compatibility line" },
     { crate = "shlex@1.3.0", reason = "Approved Skia bindgen shell parser compatibility line" },
     { crate = "syn@2.0.119", reason = "Approved MetaCrate code generator syntax line" },