Add sequential `rule_110.c`

benchmarks/seq/rule_110.c

+#include <stdint.h> // uint8_t
+#include <stdlib.h> // EXIT_SUCCESS, size_t
+#include <string.h> // memcpy()
+
+#define T uint8_t
+#define STEP_CNT 16
+
+int main(void)
+{
+    T in[] = {
+        1,1,0,1,0,0,0,0,1,0,0,1,0,0,0,1,0,0,0,0,0,1
+    };
+    #define size (sizeof(in)/sizeof(T))
+    T out[size];
+    for(size_t step = 0; step < STEP_CNT; step++) {
+        for(size_t i = 0; i < size; i++) {
+            if(i == 0) {
+                out[i] = (in[i] == 1) || (in[(i+1)] == 1);
+            } else if(i == (size-1)) {
+                out[i] = (in[i] == 1);
+            } else {
+                out[i] = (in[i] != in[(i+1)]) || ((in[(i-1)] == 0) && (in[i] == 1));
+            }
+        }
+        memcpy(in, out, size);
+    }
+    return EXIT_SUCCESS;
+}