Document weather database usage

[dschlaep]

• Write up vignette to illustrate how to create, add data, use the weather database functionality for rSOILWAT2, rSFSW2, and rSFSTEP2 applications

Create and set up a weather database:
	rSOILWAT2::dbW_createDatabase
	rSOILWAT2::dbW_setConnection
	
Define sites:
	rSOILWAT2::dbW_addSites

Define climate scenarios (if any):
	rSOILWAT2::dbW_addScenarios

Convert  weather data object to a “blob” (suitable to be efficiently stored in a SQL database):
	rSOILWAT2::dbW_weatherData_to_blob

Add that blob to the weather database:
	rSOILWAT2::dbW_addWeatherData

See also rSFSW2::make_dbW

[dschlaep]

closed by 82fc02e