[Management] Refactor index pattern creation to React, Phase 1

src/core_plugins/kibana/public/management/sections/indices/create_index_pattern_wizard/angular_template.html

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+<kbn-management-app section="kibana">
+  <kbn-management-indices>
+    <div id="react"></div>
+  </kbn-management-indices>
+</kbn-management-app>

src/core_plugins/kibana/public/management/sections/indices/create_index_pattern_wizard/constants/index.js

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+// This isn't ideal. We want to avoid searching for 20 indices
+// then filtering out the majority of them because they are sysetm indices.
+// We'd like to filter system indices out in the query
+// so if we can accomplish that in the future, this logic can go away
+export const ESTIMATED_NUMBER_OF_SYSTEM_INDICES = 100;
+export const MAX_NUMBER_OF_MATCHING_INDICES = 100;
+export const MAX_SEARCH_SIZE = MAX_NUMBER_OF_MATCHING_INDICES + ESTIMATED_NUMBER_OF_SYSTEM_INDICES;