Modification to the ML Demos structure and new Demos (oracle-samples#95)

* Update README.md * Update README.md * New demo programs for sql, r and notebooks * Added examples for oml4r and oml4spark * Update README.md * Create OML4R Clustering.json * Updated Readme Reflect the nature of Python demos coming soon * Update README.md Added mention to Autonomous Database, renamed gui -> odmr * Updates to SQL examples and odmr Updates to SQL examples and odmr * Changes to License on SQL Demos Added License comments on SQL Demos to Universal Permissive License 1.0 * OML4R and OML4Spark updates and Demos OML4R and OML4Spark updates and Demos * Update license information Update license information * Updates to license information Updates to license information * Updated the releases of OML4SQL Notebooks Updated the releases of OML4SQL Notebooks * Update OML4R Clustering Notebook Update OML4R Clustering Notebook * Adjusting Notebook names Adjusting Notebook names * Adjusting names with _ Adjusting names with _ * Removed obsolete Demo Removed obsolete Demo

Author: marancibia