Fix UG-2832HSWEG04 landscape.  Add reverse landscape support to UG_2864AMBAG01 and UG-9964HSWAG01.  Fixe NXHELLO default colors for 1-bit mono modes

Add support for the UG-2843HHSWEG04 OLED and for the SAM4L Xplained Pro OLED module that uses that OLED.

Straighten out issues about who calls C++ initializers with CXXTEST or HELLOXX are built as NSH applications; Add an ofstream test to CXXTEST suggested by Michael; Update many defconfig fiels to that they set configurations to handle C++ constructors just as before these configuration changes

Change use of ferror() in uClibc++ so that is does not use more capability than is currently supported by the NuttX ferror()