Port to vello and winit (#56)

- Remove dependencies to Piet and druid-shell
- Remove AppLauncher, AppDelegate, WinHandler, WindowDescription
- Remove Command, Notification, Selector
- Remove Textbox widget
- Create RenderRoot, EventLoopRunner type
- Update render snapshots
- Update examples

.cargo/config.toml

@@ -1,4 +1,5 @@
 [target.'cfg(all())']
+# TODO - Replace with Cargo.toml config
 rustflags = [
     # Global lints/warnings.
     # We do this here instead of in the crate root because we want to apply

.github/workflows/ci.yml

@@ -58,77 +58,14 @@ jobs:
         uses: actions-rs/cargo@v1
         with:
           command: clippy
-          args: --all-targets --features=x11 --no-default-features
+          args: --all-targets --no-default-features
 
       # We use --all-targets to skip doc tests; we run them in a parallel task
       - name: cargo test
         uses: actions-rs/cargo@v1
         with:
           command: test
-          args: --all-targets --no-default-features --features=svg,image,x11
-
-  # we test the gtk backend as a separate job because gtk install takes
-  # a long time.
-  test-stable-gtk:
-    runs-on: ubuntu-latest
-    name: cargo test (gtk)
-    steps:
-      - uses: actions/checkout@v2
-
-      - name: install libgtk-3-dev
-        run: |
-          sudo apt update
-          sudo apt install libgtk-3-dev
-
-      - name: install stable toolchain
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: stable
-          profile: minimal
-          override: true
-
-      - name: restore cache
-        uses: Swatinem/rust-cache@v2
-
-      # We use --all-targets to skip doc tests; there are no gtk-specific
-      # doctests in masonry anyway
-      - name: cargo test
-        uses: actions-rs/cargo@v1
-        with:
-          command: test
-          args: --all-targets --features=svg,image
-
-  test-stable-wasm:
-    runs-on: macOS-latest
-    name: cargo test (wasm32)
-    steps:
-      - uses: actions/checkout@v2
-
-      - name: install wasm-pack
-        uses: jetli/[email protected]
-        with:
-          version: latest
-
-      - name: install stable toolchain
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: stable
-          target: wasm32-unknown-unknown
-          components: clippy
-          profile: minimal
-          override: true
-
-      - name: restore cache
-        uses: Swatinem/rust-cache@v2
-
-      # We use --all-targets to skip doc tests; there are no wasm-specific
-      # doctests in masonry anyway
-      - name: cargo test
-        uses: actions-rs/cargo@v1
-        with:
-          command: test
-          # TODO: Add svg feature when it's no longer broken with wasm
-          args: --all-targets --features=image --no-run --target wasm32-unknown-unknown
+          args: --all-targets --no-default-features
 
   doctest-stable:
     runs-on: macOS-latest
@@ -150,7 +87,7 @@ jobs:
         uses: actions-rs/cargo@v1
         with:
           command: test
-          args: --doc --no-default-features --features=svg,image
+          args: --doc --no-default-features
 
   # This tests the future rust compiler to catch errors ahead of time without
   # breaking CI
@@ -178,12 +115,12 @@ jobs:
         uses: actions-rs/cargo@v1
         with:
           command: check
-          args: --no-default-features --features=x11
+          args: --no-default-features
         continue-on-error: true
 
       - name: cargo clippy
         uses: actions-rs/cargo@v1
         with:
           command: clippy
-          args: --all-targets --no-default-features --features=x11,svg,image
+          args: --all-targets --no-default-features
         continue-on-error: true