Refactor SecureStorage into an interface

[antonfirsov]

Description of the change

Contributes to #4497.

Additions made

public interface ISecureStorage
{
	Task<string> GetAsync(string key);
	Task SetAsync(string key, string value);
	bool Remove(string key);
	void RemoveAll();
}

public class SecureStorageImpl : ISecureStorage{ /*... */ }

[rmarinho]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 2 pipeline(s).

[rmarinho]

         D:\a\_work\1\s\src\Essentials\test\DeviceTests\Tests\SecureStorage_Tests.cs(32,33): error CS1501: No overload for method 'SetAsync' takes 3 arguments [D:\a\_work\1\s\src\Essentials\test\DeviceTests\Essentials.DeviceTests.csproj]

Build failing

[antonfirsov]

@rmarinho do we need clean CI on this and other Essentials PR-s? The failures I see so far seem to be unrelated.

[rmarinho]

seems some tests are failing , do they work locally ?

[antonfirsov]

@rmarinho thanks, addressed! How to navigate to the view you pasted? I usually go here:

but none of the checks I've seen listed test failures.

[rmarinho]

You can go to the Tests tab

Fixed