Refactor of Host ESP32

Create a json string that is readable by the server (will be later sent). Closes #54 (closed) Major refactors and cleanup of the host code. This includes SD card specific utilities, moving logging to separate files, move commonly used definitions to a separate file. Closes #56 (closed) Renamed TimeManager to NTPManager to better reflect its purpose in the project. Try remounting SD after a number of failed attempts (see Definitions.h) Early exit continuous SD access if the SD has not been found before. Closes #47 (closed)

host/host_central_mast/include/MessageType.h

+//
+// Created by zoe on 1/24/23.
+//
+
+#ifndef HOST_CENTRAL_MAST_MESSAGETYPE_H
+#define HOST_CENTRAL_MAST_MESSAGETYPE_H
+
+enum MessageType { dataAck, hostChange };
+
+typedef struct response {
+    MessageType type;
+    uint8_t mac[6];
+    long time; // Clang-Tidy: Narrowing conversion from 'unsigned long' to signed type 'long' is implementation-defined
+               // (see rtc in main.cpp)
+} response;
+#endif // HOST_CENTRAL_MAST_MESSAGETYPE_H