Merge other basic circuits here

test/circuits/sum_test.circom

@@ -0,0 +1,26 @@
+include "../../circuits/bitify.circom"
+include "../../circuits/binsum.circom"
+
+template A() {
+    signal private input a;
+    signal input b;
+    signal output out;
+
+    component n2ba = Num2Bits(32);
+    component n2bb = Num2Bits(32);
+    component sum = BinSum(32,2);
+    component b2n = Bits2Num(32);
+
+    n2ba.in <== a;
+    n2bb.in <== b;
+
+    for (var i=0; i<32; i++) {
+        sum.in[0][i] <== n2ba.out[i];
+        sum.in[1][i] <== n2bb.out[i];
+        b2n.in[i] <== sum.out[i];
+    }
+
+    out <== b2n.out;
+}
+
+component main = A();