Pivot implementation and redesign (#69)

- Pivot support implementation 
- Rename queries into inquiries
- Rename editor into workspace
- Change result set format
- New JSON format for inquiries
- Redesign panels

src/store/actions.js

@@ -5,16 +5,18 @@ export default {
     const tab = data ? JSON.parse(JSON.stringify(data)) : {}
     // If no data then create a new blank one...
     // No data.id means to create new tab, but not blank,
-    // e.g. with 'select * from csv_import' query after csv import
+    // e.g. with 'select * from csv_import' inquiry after csv import
     if (!data || !data.id) {
       tab.id = nanoid()
       tab.name = null
       tab.tempName = state.untitledLastIndex
         ? `Untitled ${state.untitledLastIndex}`
         : 'Untitled'
-      tab.isUnsaved = true
+      tab.viewType = 'chart'
+      tab.viewOptions = undefined
+      tab.isSaved = false
     } else {
-      tab.isUnsaved = false
+      tab.isSaved = true
     }
 
     // add new tab only if was not already opened