Fix examples for no-default-features (#64)

Author: Luni-4

.github/workflows/lewton.yml

@@ -18,7 +18,7 @@ jobs:
         rustc -vV
     - name: Run no-default-features builds
       run: |
-        cargo build --verbose --no-default-features
+        cargo test --verbose --no-default-features
         cargo doc --verbose --no-default-features
     - name: Run all-features builds
       run: |

Cargo.toml

@@ -14,6 +14,14 @@ readme = "README.md"
 default = ["ogg"]
 async_ogg = ["ogg", "ogg/async", "futures", "tokio-io"]
 
+[[example]]
+name = "perf"
+required-features = ["ogg"]
+
+[[example]]
+name = "player"
+required-features = ["ogg"]
+
 [dependencies]
 byteorder = "1.0"
 smallvec = "0.6"