Injected web3 signing fixed

Fix usage of remix simulator provider

Make sure contents accessed by their external URL are properly handled

use ethers 5.0.13

Fixed Uncaught Exception

Deactivate Plugins From Url Parameters

 - plugins => activate
 - pluginCall => call
 - deactivatePlugin => deactivate

Make sure the network name comply with the sourcify standard

call plugin using URL params  after page load