added i18n issue template
added i18n issue template

Asqatasun/Contrast-Finder,Asqatasun/Contrast-Finder,dzc34/Contrast-Finder,dzc34/Contrast-Finder,Asqatasun/Contrast-Finder,Asqatasun/Contrast-Finder,dzc34/Contrast-Finder,dzc34/Contrast-Finder