add testtoProductCategoryApiArray_StartingFromValue_NotZero unit test
add testtoProductCategoryApiArray_StartingFromValue_NotZero unit test

when there are products in category without zero price then price_starting_from value must be the lowest price of product stack

gOOvER/boxbilling,onddo/boxbilling,gOOvER/boxbilling,boxbilling/boxbilling,zuazo-forks/boxbilling,gOOvER/boxbilling,boxbilling/boxbilling,fffaraz/boxbilling,zuazo-forks/boxbilling,onddo/boxbilling,Eric-Zhong/boxbilling,viqsoft/boxbilling,viqsoft/boxbilling,fffaraz/boxbilling,boxbilling/boxbilling,Eric-Zhong/boxbilling,zuazo-forks/boxbilling,onddo/boxbilling,onddo/boxbilling,gOOvER/boxbilling,Eric-Zhong/boxbilling,fffaraz/boxbilling,viqsoft/boxbilling,zuazo-forks/boxbilling,Eric-Zhong/boxbilling,fffaraz/boxbilling,viqsoft/boxbilling,boxbilling/boxbilling