refactor: PSP22Error conversion & assertion

[chungquantin]

Refactoring the pop-api error assertions to make it readable instead of comparing with raw bytes. This PR relies on the PR in pop-drink: r0gue-io/pop-drink#14

About the implementation

Currently, in the example PR, the pop-api error assertion involves converting pop_api::primitives::Module to a u32. Our goal is to simplify the assertion to make it more readable, aiming for the following conversion chain:

runtime::<Pallet>::Error -> pop_api::primitives::<version>::Error -> u32

Final outcome

How to assert the PSP22Error <> pop_drink::Error?

use drink::devnet::error::{v0::{assert_runtime_err, RuntimeError},  Assets, AssetsError::AssetNotLive};

assert_runtime_err!(
	transfer(&mut session, BOB, AMOUNT / 2),
	RuntimeError::Module(Assets(AssetNotLive)),
);

If the PalletError assertion failed

---- tests::burn_fails_with_no_permission stdout ----
thread 'tests::burn_fails_with_no_permission' panicked at tests.rs:910:13:
assertion `left == right` failed
  left: Module(RuntimeError::Assets(NoPermission))
 right: Module(RuntimeError::Assets(IncorrectStatus))
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

If the DispatchError assertion failed (other than PalletError)

---- tests::mint_fails_with_arithmetic_overflow stdout ----
thread 'tests::mint_fails_with_arithmetic_overflow' panicked at tests.rs:644:5:
assertion `left == right` failed
  left: Api(Arithmetic(Overflow))
 right: Api(Arithmetic(Underflow))
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 51.60%. Comparing base (56f1076) to head (168cb0e).

@@                       Coverage Diff                        @@
##           chungquantin/feat-psp22_example     #324   +/-   ##
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  Coverage                            51.60%   51.60%           
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  Files                                   48       48           
  Lines                                 4910     4910           
  Branches                              4910     4910           
================================================================
  Hits                                  2534     2534           
  Misses                                2327     2327           
  Partials                                49       49           

[Daanvdplas]

Will review the pop drink PR now quickly but looking great!

[Daanvdplas]

LGTM!