gemhtcr

Reuse `RenderContext` after executing partial

3

For now, because of the following line of code, handlebars doens't share `RenderContext` when rendering partial. https://github.com/sunng87/handlebars-rust/blob/9d7d5556287e31e4148841a56e0981b64a679fb6/src/partial.rs#L61C9-L61C39 ```rust // Rust let partial = find_partial(rc, r, d, tname)?; if let Some(t)...