(core) Improve API Console and link from Document Settings.

Summary:
Changes to building and serving:
- Remove unpkg dependencies, add npm module for swagger-ui-dist instead.
- Move apiconsole JS logic into core/app/client/apiconsole.ts, and use TypeScript.
- Add symlinks to swagger in static/ and core/static/.
- Refactor loadScript, and add loadCssFile; use these to load swagger-ui resources.

Changes to console itself:
- Support docId, workspaceId, orgId URL parameters. When present, the matching
  value in dropdowns is moved to the front and marked as "(Current)".
- Fix the ordering of example values, particularly for workspaces.
- Remove unwanted example values.
- Hide confusing "Authorize" button.
- Hide API keys, and rely consistently on cookies for executing API calls.

Integration into Grist:
- Added a button to Document Settings, just under document ID in "API".
- The button opens a separate page, passing in org, workspace, and doc info for the current doc.

Test Plan: Only tested manually, no automated tests yet.

Reviewers: jarek

Reviewed By: jarek

Differential Revision: https://phab.getgrist.com/D4173

app/common/UserAPI.ts

@@ -352,7 +352,7 @@ export interface UserAPI {
   getOrgs(merged?: boolean): Promise<Organization[]>;
   getWorkspace(workspaceId: number): Promise<Workspace>;
   getOrg(orgId: number|string): Promise<Organization>;
-  getOrgWorkspaces(orgId: number|string): Promise<Workspace[]>;
+  getOrgWorkspaces(orgId: number|string, includeSupport?: boolean): Promise<Workspace[]>;
   getOrgUsageSummary(orgId: number|string): Promise<OrgUsageSummary>;
   getTemplates(onlyFeatured?: boolean): Promise<Workspace[]>;
   getDoc(docId: string): Promise<Document>;
@@ -540,8 +540,8 @@ export class UserAPIImpl extends BaseAPI implements UserAPI {
     return this.requestJson(`${this._url}/api/orgs/${orgId}`, { method: 'GET' });
   }
 
-  public async getOrgWorkspaces(orgId: number|string): Promise<Workspace[]> {
-    return this.requestJson(`${this._url}/api/orgs/${orgId}/workspaces?includeSupport=1`,
+  public async getOrgWorkspaces(orgId: number|string, includeSupport = true): Promise<Workspace[]> {
+    return this.requestJson(`${this._url}/api/orgs/${orgId}/workspaces?includeSupport=${includeSupport ? 1 : 0}`,
       { method: 'GET' });
   }
 
@@ -907,6 +907,8 @@ export class DocAPIImpl extends BaseAPI implements DocAPI {
     this._url = `${url}/api/docs/${docId}`;
   }
 
+  public getBaseUrl(): string { return this._url; }
+
   public async getRows(tableId: string, options?: GetRowsParams): Promise<TableColValues> {
     return this._getRecords(tableId, 'data', options);
   }