First loaded database and associated schema

Summary
First version of the central database for the PrecisionTox project will be created for the purposes of managing all of the data produced by or used by the consortium This database will allow fast and relevant queries by defining links between chemicals genesproteins phenotypes and all of the associated information that can be obtained from existing external sources In addition to simple textbased queries it will offer sequence eg BLAST and chemoinformatics eg Open Babel RDKit CDK searches