SERVER-11178: move validate command to its own file
SERVER-11178: minor validate cleanup prep
SERVER-11178: move validate to IndexCatalog
SERVER-11178: new find driver from CatalogHack -> IndexCatalog
SERVER-11178: more CatalogHack -> IndexCatalog
SERVER-11178: prefecth CatalogHack -> IndexCatalog
SERVER-11178: remove impossible to reach code
SERVER-11178: geo haystack to IndexCatalog
SERVER-11178: geo queries to IndexCatalog
SERVER-11178: more geo queries to IndexCatalog
SERVER-11178: fix drop_dups with index create by putting back logOp after changing delete path