Bring in all the extensibility updates we added during the hackathon (#2056)

Extensibility updates

src/sql/sqlops.proposed.d.ts

@@ -376,6 +376,7 @@ declare module 'sqlops' {
 	export interface TableComponentProperties extends ComponentProperties {
 		data: any[][];
 		columns: string[] | TableColumn[];
+		fontSize?: number | string;
 		selectedRows?: number[];
 	}
 
@@ -1108,4 +1109,21 @@ declare module 'sqlops' {
 		export function startBackgroundOperation(operationInfo: BackgroundOperationInfo): void;
 
 	}
+
+	export namespace connection {
+		/**
+		 * List the databases that can be accessed from the given connection
+		 * @param {string} connectionId The ID of the connection
+		 * @returns {string[]} An list of names of databases
+		 */
+		export function listDatabases(connectionId: string): Thenable<string[]>;
+
+		/**
+		 * Get a URI corresponding to the given connection so that it can be used with data
+		 * providers and other APIs that require a connection API.
+		 * Note: If the given connection corresponds to multiple URIs this may return any of them
+		 * @param connectionId The ID of the connection
+		 */
+		export function getUriForConnection(connectionId: string): Thenable<string>;
+	}
 }