Fix the warning problem of creating empty projects

Also change multiplier typo, add space for Single precision compact
before parenthesis, and add "None" for multiplier/FPX

Signed-off-by: Yunlu Zhang <Yunlu.Zhang@synopsys.com>
9000733582 Exception when pressing Apply in compiler configuration

Signed-off-by: Yunlu Zhang <Yunlu.Zhang@synopsys.com>