Two more c++-mode snippets: forr and lambda (#472)

* c++-mode: add fore and lambda keywords

* c++-mode: rename fore to forr

Author: zhchuu

snippets/c++-mode/forr

@@ -0,0 +1,7 @@
+# -*- mode: snippet -*-
+# name: for range
+# key: forr
+# --
+for (${1:type} ${2:name} : ${3:containerName}) {
+    $0
+}

snippets/c++-mode/lambda

@@ -0,0 +1,7 @@
+# -*- mode: snippet -*-
+# name: lambda
+# key: lambda
+# --
+[${1:capture clause}](${2:parameters}) {
+    $0
+}