feat(sub0): nonfungibles pop-api + pallet implementation

[chungquantin]

Nonfungible contracts size:

Original wasm size: 61.5K, Optimized: 21.7K

Description

In an effort to provide a unifying experience for developers to access runtime functionality for non-fungible tokens, APIs compliant to the PSP34 standard will be provided, as well as a set of extra functions (see Management). The interface as defined by this specification will be accessible for smart contracts via:

use pop_api::nonfungibles::<function>;

Note that the lack of version equals latest. As an example, the user could explicitly specify the version as:

use pop_api::v0::nonfungibles::<function>;

The PR includes changes made to the forked pallet-nfts following what has been discussed in the internal spec. Introducing two new pallets;

• pallets/nfts: Changes made to the forked version to add new storage items AccountBalance and Allowances and update the following logic + unit tests to support the new storage items.
• pallets/api/nonfungibles: Built on top of the pallet-nfts to expose READs and DISPATCHs for pop-api library.

The Nonfungible API provides the contract ability to mint / burn a new item, transfer and approve following the PSP34 Standard. There are additional features to manage the Nonfungible such as create / destroy a collection, set / clear metadata, set / clear / approve / cancel_approve item attribute.

Becnhmarking:

• [x] Updated pallet-nfts weight file to cover AccountBalance read case.
• [ ] Update approved_transfer, transfer and cancel_approval to count Allowances storage read.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 79.39815% with 356 lines in your changes missing coverage. Please review.

Project coverage is 70.06%. Comparing base (0460a44) to head (1943669).

Files with missing lines	Patch %	Lines
pallets/nfts/src/weights.rs	3.59%	295 Missing :warning:
pallets/api/src/nonfungibles/mod.rs	70.44%	34 Missing and 13 partials :warning:
pallets/nfts/src/features/approvals.rs	93.42%	1 Missing and 4 partials :warning:
runtime/devnet/src/config/api/mod.rs	96.26%	4 Missing :warning:
pallets/nfts/src/features/transfer.rs	77.77%	2 Missing :warning:
pallets/nfts/src/lib.rs	88.88%	2 Missing :warning:
pallets/api/src/nonfungibles/types.rs	0.00%	1 Missing :warning:

@@                        Coverage Diff                        @@
##           chungquantin/sub0-pallet_nfts     #353      +/-   ##
=================================================================
+ Coverage                          67.37%   70.06%   +2.68%     
=================================================================
  Files                                 69       72       +3     
  Lines                              11731    12975    +1244     
  Branches                           11731    12975    +1244     
=================================================================
+ Hits                                7904     9091    +1187     
- Misses                              3568     3608      +40     
- Partials                             259      276      +17     

Files with missing lines	Coverage Δ
pallets/api/src/fungibles/mod.rs	92.59% <ø> (ø)
pallets/api/src/fungibles/tests.rs	99.73% <100.00%> (+0.03%)	:arrow_up:
pallets/api/src/mock.rs	100.00% <100.00%> (ø)
pallets/api/src/nonfungibles/tests.rs	100.00% <100.00%> (ø)
pallets/nfts/src/benchmarking.rs	85.79% <ø> (ø)
pallets/nfts/src/common_functions.rs	81.39% <100.00%> (+1.39%)	:arrow_up:
...lets/nfts/src/features/create_delete_collection.rs	84.70% <100.00%> (+0.36%)	:arrow_up:
pallets/nfts/src/features/create_delete_item.rs	89.56% <100.00%> (+0.35%)	:arrow_up:
pallets/nfts/src/tests.rs	99.88% <100.00%> (+<0.01%)	:arrow_up:
pallets/nfts/src/types.rs	67.11% <ø> (ø)
... and 9 more