feat: add Enum in contract

Squashed commit of the following:

commit fd6064e
Author: Philippe ROSTAN <[email protected]>
Date:   Mon Jul 3 19:26:54 2023 +0200

    feat: merge in hellocairo2

commit 0246933
Author: Philippe ROSTAN <[email protected]>
Date:   Mon Jul 3 17:21:45 2023 +0200

    feat: merge v5.16.0
    Squashed commit of the following:

    commit e5696b4
    Author: semantic-release-bot <[email protected]>
    Date:   Mon Jul 3 15:08:31 2023 +0000

        chore(release): 5.16.0 [skip ci]

        * cairo1 version2 support ([e564033](e564033))
        * extract parser from CallData and Cairo ([b7eba2a](b7eba2a))
        * parsers ([cce9029](cce9029))

    commit 3389085
    Merge: e6b861a 589c948
    Author: Toni Tabak <[email protected]>
    Date:   Mon Jul 3 17:06:08 2023 +0200

        Merge pull request #670 from 0xs34n/next-version

        Next version

    commit 589c948
    Merge: ffa6d07 03ee060
    Author: Toni Tabak <[email protected]>
    Date:   Mon Jul 3 16:38:23 2023 +0200

        Merge pull request #665 from 0xs34n/0.12.0/abi-parser

        abi parser Cario1 Version2

    commit 03ee060
    Author: Toni Tabak <[email protected]>
    Date:   Mon Jul 3 16:32:11 2023 +0200

        chore: cleanup

    commit 6c0eae2
    Author: Toni Tabak <[email protected]>
    Date:   Mon Jul 3 14:07:45 2023 +0200

        chore: compiled files

    commit e564033
    Author: Toni Tabak <[email protected]>
    Date:   Mon Jul 3 14:05:52 2023 +0200

        feat: cairo1 version2 support

    commit ffa6d07
    Merge: e6b861a 6f8164f
    Author: Toni Tabak <[email protected]>
    Date:   Mon Jul 3 11:43:42 2023 +0200

        Merge pull request #664 from amanusk/cairo_v2_example

        Add example of new synatx cairo contract

    commit cae5abd
    Author: Toni Tabak <[email protected]>
    Date:   Mon Jul 3 11:41:51 2023 +0200

        chore: refact

    commit cce9029
    Author: Toni Tabak <[email protected]>
    Date:   Fri Jun 30 16:16:21 2023 +0200

        feat: parsers

    commit b7eba2a
    Author: Toni Tabak <[email protected]>
    Date:   Fri Jun 30 16:13:14 2023 +0200

        feat: extract parser from CallData and Cairo

    commit 6f8164f
    Author: amanusk <[email protected]>
    Date:   Thu Jun 29 21:23:28 2023 +0300

        Add example of new synatx cairo contract

commit 15c1dcc
Author: Philippe ROSTAN <[email protected]>
Date:   Sun Jul 2 14:36:05 2023 +0200

    feat: sierra.json with enums

commit 7e6e136
Merge: b2e7a40 e6b861a
Author: Philippe ROSTAN <[email protected]>
Date:   Fri Jun 30 12:36:18 2023 +0200

    Merge pull request #1 from 0xs34n/develop

    merge