lcd: Renamed 'i2clcd' library to 'lcd'

All other upm library directories match their corresponding library
name, the i2clcd was an outlier which caused problems for CMake and
testing.

    * Replaced usage of i2clcd with lcd
    * Renamed source files and examples
    * Updated examples to use correct class
    * Updated documentation where necessary (left changelog sections)

Signed-off-by: Noel Eck <noel.eck@intel.com>

examples/javascript/oled_ssd1306.js

@@ -88,8 +88,8 @@ function exit()
     process.exit(0);
 }
 
-// Load i2clcd module
-var lcdObj = require('jsupm_i2clcd');
+// Load lcd module
+var lcdObj = require('jsupm_lcd');
 var lcd = new lcdObj.SSD1306(0, 0x3C);
 var next = 0;