[DO-984] add-zlib-recipe (!4)

Co-authored-by: aleksandr.vodyanov <aleksandr.vodyanov@avroid.tech>
Reviewed-on: https://git.avroid.tech/Conan/conan_build/pulls/4

recipes/zlib/all/test_package/test_package.c

@@ -0,0 +1,32 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <zlib.h>
+
+int main(void) {
+    char buffer_in [32] = {"Conan Package Manager"};
+    char buffer_out [32] = {0};
+
+    z_stream defstream;
+    defstream.zalloc = Z_NULL;
+    defstream.zfree = Z_NULL;
+    defstream.opaque = Z_NULL;
+    defstream.avail_in = (uInt) strlen(buffer_in);
+    defstream.next_in = (Bytef *) buffer_in;
+    defstream.avail_out = (uInt) sizeof(buffer_out);
+    defstream.next_out = (Bytef *) buffer_out;
+
+    deflateInit(&defstream, Z_BEST_COMPRESSION);
+    deflate(&defstream, Z_FINISH);
+    deflateEnd(&defstream);
+
+    printf("Compressed size is: %lu\n", strlen(buffer_in));
+    printf("Compressed string is: %s\n", buffer_in);
+    printf("Compressed size is: %lu\n", strlen(buffer_out));
+    printf("Compressed string is: %s\n", buffer_out);
+
+    printf("ZLIB VERSION: %s\n", zlibVersion());
+
+    return EXIT_SUCCESS;
+}