abstract generic logic from blueprinters to blueprinters.js

The logic in the files in the 'blueprinters' folder is now _only_ the data transformation logic. Instead of taking in arguments like the sheetId, the tabName, and the sheetName, the function now takes a single argument: the list of lists that represents the raw data from the sheet.

This setup gives datasheet-server greater value, as it allows developers to only specify the transformation logic, and not worry about the other stuff that datasheet server is doing.

src/blueprinters/columns.js

@@ -1,37 +0,0 @@
-import R from 'ramda'
-import { defaultBlueprint, defaultResource } from '../lib/blueprinters'
-
-/**
- * byColumn - generate a Blueprint from a data sheet by column. Each column
- * name is a resheet, and all values in that column are the resheet items.
- *
- * @param  {type} data - list of lists representing sheet data.
- * @return {type} Blueprint
- * generated.
- */
-function columns (tabName, sheetName, sheetId, data) {
-  // Define Blueprint props
-  const bp = R.clone(defaultBlueprint)
-  bp.sheet = {
-    name: sheetName,
-    id: sheetId
-  }
-  bp.name = tabName
-
-  // column names define resources
-  const labels = data[0]
-  labels.forEach(label => {
-    bp.resources[label] = R.clone(defaultResource)
-  })
-
-  // remaining rows as data
-  data.forEach((row, idx) => {
-    if (idx === 0) return
-    labels.forEach((label, idx) => {
-      bp.resources[label].data.push(row[idx])
-    })
-  })
-  return bp
-}
-
-export default columns