Migrate extension samples to eslint

[egamma]

The following examples are still using tslint and should be migrated to use eslint.

This is the guide https://code.visualstudio.com/api/advanced-topics/tslint-eslint-migration

• i18n-sample
• helloworld-sample
• fsconsumer-sample
• webpack-sample
• lsp-embedded-language-service
• lsp-embedded-request-forwarding
• basic-multi-root-sample
• lsp-log-streaming-sample
• semantic-tokens-sample
• configuration-sample
• nodefs-provider-sample
• extension-terminal-sample
• webview-sample
• comment-sample
• decorator-sample
• proposed-api-sample
• tree-view-sample
• progress-sample
• quickinput-sample
• call-hierarchy-sample
• custom-editor-sample
• .base-sample
• completions-sample
• helloworld-test-sample
• code-actions-sample
• document-editing-sample
• diagnostic-related-information-sample
• task-provider-sample
• fsprovider-sample
• source-control-sample
• terminal-sample
• lsp-multi-server-sample
• vim-sample
• contentprovider-sample

[jrieken]

related, duplicate of microsoft/vscode-extension-samples#266

[jrieken]

This is done. Thanks @mjbvz