Implement init/deinit of inotify system

Use RAII to handle inotify resource lifetime, i.e. initialize with actor
creation and deinitialize with actor deletion.

Sources/CInotify/cinotify.h

@@ -0,0 +1,24 @@
+#ifndef CINOTIFY_H
+#define CINOTIFY_H
+
+#include <stdlib.h>
+#include <sys/inotify.h>
+#include <errno.h>
+
+static inline int cinotify_deinit(int fd) {
+	return close(fd);
+}
+
+static inline int cinotify_get_errno(void) {
+	return errno;
+}
+
+static inline char* get_error_message() {
+	int error_number = errno;
+	errno = 0;
+	char* error_message = strerror(error_number);
+	if (errno > 0) return NULL;
+	return error_message;
+}
+
+#endif