Perfect conversions from JsValue -> arbitrary Rust types -> JsValue

[lastmjs]

It's becoming apparent that Azle really needs to be able to convert to and from JsValue's generally. I think this is the root of my serde Serialize problems with Candid Nat, and is one of the major issues I am waiting on in boa and to get cross-canister calls to work.

Perhaps I should start by just implementing the conversions myself, if it goes well I can integrate them into boa and do a pull request to hopefully have it upstreamed.

Implement this first:

• Implement i128 to JsValue conversions boa-dev/boa#1970

[lastmjs]

I might want to go ahead and just implement a fix for this issue: boa-dev/boa#1975

[lastmjs]

I believe the following issues would be resolved if this issue were resolved:

• TryFromJsValue boa-dev/boa#1975
• to_json u32 error boa-dev/boa#1961
• the trait bound ic_cdk::export::candid::Nat: Serialize is not satisfied dfinity/candid#331
• didc -t rs should implement serialize for records and variants dfinity/candid#324
• Cross-canister calls #122
• Create a management canister package #139
• Explain that you must use the specific azle-provided number types #131
• Incorporate TryFromJsValue #127
• Explain current number safety #99
• invalid type: floating point 4294967295, expected u32 #98
• Get rid of extra code for adding Serialize to Candid-generated Rust types #93
• Int, i128, i64, Nat, u128, and u64 are not fully representable in JS #70
• Rust to JS serialization security #27
• Look into using BigInt for numbers #20

[lastmjs]

I'm trying to figure out the proper way to convert a Rust type into a JsValue in boa, I think it's to use .into() or JsValue::from

[lastmjs]

Follow this conversation: boa-dev/boa#1971 (comment)

[lastmjs]

Once this is approved boa-dev/boa#1989 make sure to pull request the rest of the integer conversions to JsValue