rename goutils to obiutils

Former-commit-id: 2147f53db972bba571dfdae30c51b62d3e69cec5

pkg/obiutils/slices.go

@@ -0,0 +1,23 @@
+package obiutils
+
+func Contains[T comparable](arr []T, x T) bool {
+	for _, v := range arr {
+		if v == x {
+			return true
+		}
+	}
+	return false
+}
+
+func LookFor[T comparable](arr []T, x T) int {
+	for i, v := range arr {
+		if v == x {
+			return i
+		}
+	}
+	return -1
+}
+
+func RemoveIndex[T comparable](s []T, index int) []T {
+	return append(s[:index], s[index+1:]...)
+}