feat(wasm-dpp): implement function to produce generics from JsValue

[markin-io]

Issue being fixed or feature implemented

This utility function helps to produce generics from JsValue in the situations where we don't really know what is exactly passed to the function. (E.g. we can have either InstantAssetLockProof or ChainAssetLockProof)

Usage sample:

use wasm_bindgen::__rt::Ref;
use crate::utils::{generic_of_js_val};

struct Internal {
    value: u8,
}

#[wasm_bindgen(js_name=jsValueToGeneric)]
pub async fn js_value_to_generic(
    js_value: JsValue, 
) -> Result<JsValue, JsValue> {
    let internal: Ref<Internal> = generic_of_js_val::<Internal>(&js_value, "Internal")?;
    let internal_instance = internal.clone();
    ...
}

What was done?

Applied workaround as explained here rustwasm/wasm-bindgen#2231 (comment)

How Has This Been Tested?

Locally on relevant code sample

Breaking Changes

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated relevant unit/integration/functional/e2e tests
• I have made corresponding changes to the documentation

For repository code-owners and collaborators only

• I have assigned this pull request to a milestone

[shumkov]

Will it be helpful to have a test?

[markin-io]

@shumkov this function will be used in bindings tests.
I just submitted it is as a standalone PR because others might need it as well

[antouhou]

👍