Support printing of single characters

Fixes #10

Author: platisd

src/Nokia_LCD.cpp

@@ -176,7 +176,15 @@ bool Nokia_LCD::println(const String &string) {
 }
 #endif
 
-bool Nokia_LCD::printCharacter(const unsigned char character) {
+bool Nokia_LCD::println(char character) {
+    bool out_of_bounds = print(character);
+
+    return print("\n") || out_of_bounds;
+}
+
+bool Nokia_LCD::print(char character) { return printCharacter(character); }
+
+bool Nokia_LCD::printCharacter(char character) {
     const unsigned char new_line = '\n';
 
     // If there is a new line character, we only need to change row

src/Nokia_LCD.h

@@ -113,6 +113,7 @@ class Nokia_LCD {
      * @return        True if out of bounds error | False otherwise
      */
     bool print(const char *string);
+    bool print(char character);
     bool print(int number);
     bool print(unsigned int number);
     bool print(long number);
@@ -136,6 +137,7 @@ class Nokia_LCD {
      * @return        True if out of bounds error | False otherwise
      */
     bool println(const char *string);
+    bool println(char character);
     bool println(int number);
     bool println(unsigned int number);
     bool println(long number);
@@ -222,7 +224,7 @@ class Nokia_LCD {
      * @param  character The character to be printed
      * @return           True if out of bounds error | False otherwise
      */
-    bool printCharacter(const unsigned char character);
+    bool printCharacter(char character);
 
     const uint8_t kClk_pin, kDin_pin, kDc_pin, kCe_pin, kRst_pin, kBl_pin;
     uint8_t mX_cursor, mY_cursor;