Add small_config.yml for testing

Signed-off-by: Chris Cummer <chriscummer@me.com>

_sample_configs/small_config.yml

@@ -0,0 +1,17 @@
+wtf:
+  grid:
+    columns: [20, 20]
+    rows: [3, 3]
+  refreshInterval: 1
+  mods:
+    uptime:
+      type: cmdrunner
+      args: [""]
+      cmd: "uptime"
+      enabled: true
+      position:
+        top: 0
+        left: 0
+        height: 1
+        width: 1
+      refreshInterval: 30

utils/sums.go

@@ -0,0 +1,12 @@
+package utils
+
+// SumInts takes a slice of ints and returns the sum of them
+func SumInts(vals []int) int {
+	sum := 0
+
+	for _, a := range vals {
+		sum += a
+	}
+
+	return sum
+}