added git_gutter colors for ocean.dark
added git_gutter colors for ocean.dark
mjrev/spacegray,pongstr/spacegray,mjrev/spacegray,VANITAX/spacegray,kkga/spacegray,markhuot/spacegray,mhkeller/spacegray,wengyulin/spacegray,ericmatthys/spacegray-oceanic-next,wangtingbang/spacegray,qiuyesuifeng/spacegray,cmelbye/spacegray,VikingDen/spacegray,lancevalour/spacegray,mhkeller/spacegray,silverbux/spacegray,mjrev/spacegray,marcofugaro/spacegray,jay3126/spacegray