Added very minor code comments

src/TinyGsmClientA6.h

@@ -522,6 +522,10 @@ public:
     return res;
   }
 
+  /*
+   * Client related functions
+   */
+
 protected:
 
   bool modemConnect(const char* host, uint16_t port, uint8_t* mux) {
@@ -566,7 +570,9 @@ protected:
 
 public:
 
-  /* Utilities */
+  /*
+   Utilities
+   */
 
   template<typename T>
   void streamWrite(T last) {

src/TinyGsmClientBG96.h

@@ -534,6 +534,10 @@ public:
 
   int getBattPercent() TINY_GSM_ATTR_NOT_IMPLEMENTED;
 
+  /*
+   * Client related functions
+   */
+
 protected:
 
   bool modemConnect(const char* host, uint16_t port, uint8_t mux, bool ssl = false) {
@@ -623,7 +627,9 @@ protected:
 
 public:
 
-  /* Utilities */
+  /*
+   Utilities
+   */
 
   template<typename T>
   void streamWrite(T last) {

src/TinyGsmClientESP8266.h

@@ -191,6 +191,7 @@ public:
   }
 };
 
+
 public:
 
   TinyGsmESP8266(Stream& stream)
@@ -386,6 +387,10 @@ public:
     return res2;
   }
 
+  /*
+   * Client related functions
+   */
+
 protected:
 
   bool modemConnect(const char* host, uint16_t port, uint8_t mux, bool ssl = false) {
@@ -423,7 +428,9 @@ protected:
 
 public:
 
-  /* Utilities */
+  /*
+   Utilities
+   */
 
   template<typename T>
   void streamWrite(T last) {

src/TinyGsmClientM590.h

@@ -519,6 +519,10 @@ public:
 
   int getBattPercent() TINY_GSM_ATTR_NOT_AVAILABLE;
 
+  /*
+   * Client related functions
+   */
+
 protected:
 
   bool modemConnect(const char* host, uint16_t port, uint8_t mux) {
@@ -576,7 +580,9 @@ protected:
 
 public:
 
-  /* Utilities */
+  /*
+   Utilities
+   */
 
   template<typename T>
   void streamWrite(T last) {

src/TinyGsmClientM95.h

@@ -627,6 +627,10 @@ public:
     return res;
   }
 
+  /*
+   * Client related functions
+   */
+
 protected:
 
   bool modemConnect(const char* host, uint16_t port, uint8_t mux, bool ssl = false) {
@@ -728,7 +732,9 @@ protected:
 
 public:
 
-  /* Utilities */
+  /*
+   Utilities
+   */
 
   template<typename T>
   void streamWrite(T last) {

src/TinyGsmClientMC60.h

@@ -662,6 +662,10 @@ public:
     return res;
   }
 
+  /*
+   * Client related functions
+   */
+
 protected:
 
   bool modemConnect(const char* host, uint16_t port, uint8_t mux, bool ssl = false) {

src/TinyGsmClientSIM800.h

@@ -39,6 +39,7 @@ enum RegStatus {
   REG_UNKNOWN      = 4,
 };
 
+
 class TinyGsmSim800 : public TinyGsmModem
 {
 
@@ -694,6 +695,7 @@ public:
   /*
    * Battery functions
    */
+
   // Use: float vBatt = modem.getBattVoltage() / 1000.0;
   uint16_t getBattVoltage() {
     sendAT(GF("+CBC"));
@@ -719,6 +721,10 @@ public:
     return res;
   }
 
+  /*
+   * Client related functions
+   */
+
 protected:
 
   bool modemConnect(const char* host, uint16_t port, uint8_t mux, bool ssl = false) {
@@ -813,7 +819,9 @@ protected:
 
 public:
 
-  /* Utilities */
+  /*
+   Utilities
+   */
 
   template<typename T>
   void streamWrite(T last) {

src/TinyGsmClientUBLOX.h

@@ -547,6 +547,10 @@ public:
     return res;
   }
 
+  /*
+   * Client related functions
+   */
+
 protected:
 
   bool modemConnect(const char* host, uint16_t port, uint8_t* mux, bool ssl = false) {
@@ -640,7 +644,9 @@ protected:
 
 public:
 
-  /* Utilities */
+  /*
+   Utilities
+   */
 
   template<typename T>
   void streamWrite(T last) {

src/TinyGsmClientXBee.h

@@ -651,6 +651,10 @@ fail:
 
   int getBattPercent() TINY_GSM_ATTR_NOT_AVAILABLE;
 
+  /*
+   * Client related functions
+   */
+
 protected:
 
   bool modemConnect(const char* host, uint16_t port, uint8_t mux = 0, bool ssl = false) {
@@ -716,7 +720,9 @@ protected:
 
 public:
 
-  /* Utilities */
+  /*
+   Utilities
+   */
 
   template<typename T>
   void streamWrite(T last) {