[NEW][WIP] Add Crypto Wallet - MetaMask Connect Components Kit

[Dnouv]

This PR introduces a new component to connect to MetasMask using methods available from the MetaMask API documentation page.
Here is a clip showing the demo of the component.

2022-03-14T07-38-33D0-14_AdobeCreativeCloudExpress.mp4

In the video, the "0" in the dark background is the balance while the hex string is the account identification number.

Thank you!

[lgtm-com]

This pull request introduces 5 alerts when merging 92d0657 into 50f7da2 - view on LGTM.com

new alerts:

• 4 for Unused variable, import, function or class
• 1 for Superfluous trailing arguments

[Dnouv]

In the latest commit, the style of the Chip illustrating the balance and the Account id is changed here is the new image,

Thank you!

[Sing-Li]

Excellent! Plese investigate and add:

1. Brave Browser built-in wallet support, if it can expose the same set of APIs as MetaMask
2. A few components displaying balances of the wallets (including erc-20 tokens)
3. A component that renders visual NFTs - that can be eventually be added to our super profile

Please consider exposing APIs to support:

1. token geted access
2. in-chat token transactions (needs some new design)

[Dnouv]

Thank you for the review; I'll look into the support for the Brave wallet and will also expose the APIs currently, only two APIs are used, one to fetch the account and the other to fetch the balance. And will also investigate the other points mentioned above.
Thank you!

[lgtm-com]

This pull request introduces 3 alerts when merging cbb1942 into 50f7da2 - view on LGTM.com

new alerts:

• 2 for Unused variable, import, function or class
• 1 for Superfluous trailing arguments

[Dnouv]

Update: Exposed the connect API
Added a new component NFTProfile to fetch a user's NFTs by connecting to the wallet.

Thank you!

[lgtm-com]

This pull request introduces 1 alert when merging 0ea549f into 1612542 - view on LGTM.com

new alerts:

• 1 for Unused variable, import, function or class

[lgtm-com]

This pull request introduces 1 alert when merging 07f8a86 into 1612542 - view on LGTM.com

new alerts:

• 1 for Unused variable, import, function or class

[lgtm-com]

This pull request introduces 1 alert when merging bf5053a into 1612542 - view on LGTM.com

new alerts:

• 1 for Unused variable, import, function or class