Showing all deposit addresses, memos in the Binance Widget.

[ryanml]

Fixes: brave/brave-browser#9250
Fixes: brave/brave-browser#9535

Submitter Checklist:

• Submitted a ticket for my issue if one did not already exist.
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Test Plan:

Defined in issues

Reviewer Checklist:

• New files have MPL-2.0 license header.
• Request a security/privacy review as needed.
• Adequate test coverage exists to prevent regressions
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After-merge Checklist:

• The associated issue milestone is set to the smallest version that the
  changes has landed on.
• All relevant documentation has been updated.

[ryanml]

I figured this would just be better off as a generic prying function

[ryanml]

We'll check for only what's in the deposit list, as there are hundreds of currencies in the network endpoints

[emerick]

LGTM

[ryanml]

Note: The url property wasn't being used anywhere so memo took its place

[ryanml]

Builds generated for all platforms, tests related to Binance passed, known failures for ads confirmations resulted in failure

[kjozwiak]

Reproduced the issue on macOS 10.15.4 x64 Catalina using the following build:

Brave | 1.8.86 Chromium: 81.0.4044.129 (Official Build) (64-bit)
--- | ---
Revision | 3d71af9f5704a40b85806f4d08925db24605ba25-refs/branch-heads/4044@{#979}
OS | macOS Version 10.15.4 (Build 19E287)

Issue #9250	Issue #9535

Verification PASSED on macOS 10.15.5 x64 Catalina using the following build:

Brave | 1.10.24 Chromium: 81.0.4044.129 (Official Build) nightly (64-bit)
-- | --
Revision | 3d71af9f5704a40b85806f4d08925db24605ba25-refs/branch-heads/4044@{#979}
OS | macOS Version 10.15.4 (Build 19E287)

Issue #9250	Issue #9535

Ran into brave/brave-browser#9250 (comment) and created brave/brave-browser#9600.