Content Manager Championships Previews v4

Added a few more requested previews.

TCR
TCR Italy, Europe, Germany, etc.
WTCR
IROC
Trofeo Maserati
Ginetta GT5 Cup

Added more generic manufacturer previews and a generic checkered flag:
Abarth
Alfa
Ford
Honda
Lancia
Lotus
McLaren
Mini
Nissan
Pagani
Peugeot
Praga
Renault
RUF
Shelby
Toyota
VW

Following up on the feedback, I have added 20+ more previews.

-Generic Formula One for all three versions
-Generic manufacturers (lambo, ferrari, mercedes, audi, renault, bmw, etc.)
-British GT
-Blancpain Asia
-FIA GT historic and other generic versions
-Blancpain sport club
-Pirelli World Challenge
-FIA World Rally
- and a few others...