feat: ingested width logic, useAbsoluteLayout useBlockLayout

Width options (`width`, `minWidth`, `maxWidth`) options are now a part of the core column object.
useBlockLayout and useAbsoluteLayout hooks now use this new internalized information to implement
their layouts. Those examples have been updated. A virtualized-rows example has also been added to
show off how the useBlockLayout hook can be used to virtualize rows with react-window.

examples/block-layout/.rescriptsrc.js

@@ -0,0 +1,29 @@
+const path = require('path')
+const resolveFrom = require('resolve-from')
+
+const fixLinkedDependencies = config => {
+  config.resolve = {
+    ...config.resolve,
+    alias: {
+      ...config.resolve.alias,
+      react$: resolveFrom(path.resolve('node_modules'), 'react'),
+      'react-dom$': resolveFrom(path.resolve('node_modules'), 'react-dom'),
+    },
+  }
+  return config
+}
+
+const includeSrcDirectory = config => {
+  config.resolve = {
+    ...config.resolve,
+    modules: [path.resolve('src'), ...config.resolve.modules],
+  }
+  return config
+}
+
+module.exports = [
+  ['use-babel-config', '.babelrc'],
+  ['use-eslint-config', '.eslintrc'],
+  fixLinkedDependencies,
+  // includeSrcDirectory,
+]