[sqllab] table refactor (#2587)

* make react-virtualized table work
use dynamic sizing for cell width
enable filtering
require height prop for result set component

* fix tests and linting

* move some state to props

* move getTextWidth to visUtils

* make striped rows optional

* fix striped proptype

* update name to FilterableTable

* add basic test and fix linting

* accept array of columns keys rather than an array of objects that needs to be mapped

* move container div inside the component

* rename styles

* fit table component to width if it's smaller than parent container

* move stylesheet to javascript folder otherwise it throws an error on npm run prod

* move css to index.jsx

* fix result set spec

* fix linting and test

* fix result set props

* keep list immutable

superset/assets/spec/javascripts/sqllab/ResultSet_spec.jsx

@@ -2,8 +2,7 @@ import React from 'react';
 import { shallow } from 'enzyme';
 import { describe, it } from 'mocha';
 import { expect } from 'chai';
-import { Table } from 'reactable';
-
+import FilterableTable from '../../../javascripts/components/FilterableTable/FilterableTable';
 import ResultSet from '../../../javascripts/SqlLab/components/ResultSet';
 import { queries } from './fixtures';
 
@@ -21,6 +20,6 @@ describe('ResultSet', () => {
   });
   it('renders a Table', () => {
     const wrapper = shallow(<ResultSet {...mockedProps} />);
-    expect(wrapper.find(Table)).to.have.length(1);
+    expect(wrapper.find(FilterableTable)).to.have.length(1);
   });
 });