feat(gst): Added gst a high level wrapper over gstreamer

chore(example): Added hdr-gstreamer-wgpu example
chore(license): Added MIT license to all crates

gst/src/errors.rs

@@ -0,0 +1,7 @@
+pub use error_stack::{Report, ResultExt};
+
+#[derive(Debug, thiserror::Error)]
+#[error("An error occurred")]
+pub struct Error;
+
+pub type Result<T, E = error_stack::Report<Error>> = core::result::Result<T, E>;