added route to get singular plant data
updated sql query syntax errors
hard coded ids to see if request should work
changed pi id to string in quotes in request
was looking up the wrong table name. table name has been changed to soildata
took out quotes around pi id value
changed where clause to have single quotes as sql where commands take single quotes
dropped database and added new sensor id column to pi units table so we can join on column when comparing sensor readings with redlines
added sensor id to insert clause for post from client for new plant
changed individual plant data query back to interpolated data