Re-jigged the class implementation to get better support from roxygen2 and CRAN check(). Majority of public functions are documented (remaining are the CRUD functions)

DESCRIPTION

@@ -14,6 +14,9 @@ Imports:
     dbplyr,
     dplyr,
     R6,
+    rlang,
     tibble
-Suggests: 
+Suggests:
+    RMariaDB,
+    RPostgres,
     sf