Fixes for rotate bilinear tests
Fixes for rotate bilinear tests

* Requires higher tolerance for floating point errors
* Enable previously disabled test

jramapuram/arrayfire,linan7788626/arrayfire,9prady9/arrayfire,arrayfire/arrayfire,mrgloom/arrayfire,pombredanne/arrayfire,shehzan10/arrayfire,victorv/arrayfire,ghisvail/arrayfire,bkloppenborg/arrayfire,arrayfire/arrayfire,linan7788626/arrayfire,umar456/arrayfire,victorv/arrayfire,hshindo/arrayfire,umar456/arrayfire,asifmadnan/arrayfire,pombredanne/arrayfire,hshindo/arrayfire,munnybearz/arrayfire,ghisvail/arrayfire,0x0all/arrayfire,ghisvail/arrayfire,asifmadnan/arrayfire,pavanky/arrayfire,munnybearz/arrayfire,marbre/arrayfire,asifmadnan/arrayfire,pavanky/arrayfire,ghisvail/arrayfire,HolyGeneralK/arrayfire,merlin-ext/arrayfire,pombredanne/arrayfire,hshindo/arrayfire,9prady9/arrayfire,marbre/arrayfire,umar456/arrayfire,mrgloom/arrayfire,glehmann/arrayfire,marbre/arrayfire,pentschev/arrayfire,Keno/arrayfire,unbornchikken/arrayfire,bkloppenborg/arrayfire,pentschev/arrayfire,shehzan10/arrayfire,merlin-ext/arrayfire,jramapuram/arrayfire,shehzan10/arrayfire,mrgloom/arrayfire,HolyGeneralK/arrayfire,glehmann/arrayfire,pentschev/arrayfire,linan7788626/arrayfire,umar456/arrayfire,arrayfire/arrayfire,unbornchikken/arrayfire,Keno/arrayfire,9prady9/arrayfire,mrgloom/arrayfire,HolyGeneralK/arrayfire,arrayfire/arrayfire,victorv/arrayfire,jramapuram/arrayfire,unbornchikken/arrayfire,Keno/arrayfire,0x0all/arrayfire,bkloppenborg/arrayfire,linan7788626/arrayfire,asifmadnan/arrayfire,bkloppenborg/arrayfire,9prady9/arrayfire,pentschev/arrayfire,marbre/arrayfire,merlin-ext/arrayfire,victorv/arrayfire,Keno/arrayfire,munnybearz/arrayfire,merlin-ext/arrayfire,HolyGeneralK/arrayfire,unbornchikken/arrayfire,hshindo/arrayfire,jramapuram/arrayfire,pavanky/arrayfire,pavanky/arrayfire,pombredanne/arrayfire,shehzan10/arrayfire