Added T9Gx2 relay

Hi, I haven't found this part in KiCad library. (This is basically same as my previous merge request except a pad was deleted.)

Footprint name: Relay_SPST_TE_T9Gx2

Description: General Purpose T9G series 30A DC coil Relay, https://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Data+Sheet%7FT9G_1216%7F1117%7Fpdf%7FEnglish%7FENG_DS_T9G_1216_1117.pdf%7FCAT-P851-T1

Keywords: General Purpose 30A Relay T9G

Datasheet footprint:

My footprint: Pin numbers: