Adding checks with mbedls throughout testing process

Move program_cycle_s into host test copy plugins

Changed 'default' flashing method for cli option -c to 'shell'

Added timeouts (delays) on serial port and mounting point accesses in host_test and copy plugins to prevent serial/disk io errors when device remounts USB iface of interface chip

Added mbed assertion detection ...

Test suite will detect mbed assertion print and end test execution with MBED_ASSERT error

Added autodetection fior tests including MMA8451Q accelerometer

Refactored host_test.py script to filter for TargetIds in auto-detection flow

Refactored C++ test and added '+' sign as recognized character in auto-test description

Refactored echo at 115200 test for new model of test autodetection

Refactored few more tests to support autodetection: basic, call_before_main, dev_null, rtc, stdio

Refactored generic tests with timer host test supervision ...

Reactored RTOS tests

Host test plugins: Ethernet tests (NET_*) refactored to new host test copy paradigm

Host test plugins: minor updates

Host test plugins: bug-fix: serial_timeout was used as function name and class member. Caused runtime script problem ...

Host test plugins: Increased test suite timeout on each test execution twice - for now, so tests do not timeout. TODO: exclude coopy and reset procedures from testcase timeout measurement

Host test plugins: added custom serial port configuration, baudrate and timeout. This can now be done before host test will call run() function

Host test plugins: Added prints to serial_init() function

Host test plugins: moved program cycle sleep time to host_test - this delay is used to give time device to flash copied file

Host test plugins: removed usused extra_baud parameter from serial port initialization

Host test plugins: refactored TestResults class to HostTestResults name

Host test plugins: run() function will just print result from test() function directly, not check boolean state from test

Host test plugins: Default host test aligned and refactored so it can be invoked via run() function

Host test copy functionality migration: copy functionality partially moved to host_test (tested with basic set of tests, not with e.g. NET tests. ...

Host test copy functionality: TODO: modify rest of host tests to use self.mbed.reset() and self.mbed.copy_image() according to curent test scipt API

Host test copy functionality migration: removed all extra port and disk functionality. It will be added when it is really needed

Host test copy functionality migration: added required parameters for host_test.py command line: path to image, copy method

Host test plugins: Added MPS2 and Firfox copy methods (both not stable and require further development) ...

Host test plugins: Added 'stable' attribute to each plugin, by default all plugins are not stable

Moved all MPS2 related functions to MPS2 plugins in host test directory

Host test plugins: added copy pligins, and removed Selenium and eACommander dependency from Test API

Host test plugins: moved serial port flashing just before plugin reset call

Host test plugins: First draft with working pluging for mbed (serial sendBreak command for reset)

Host test refactoring ...

Host test refactoring: replaced magic values of test results returned by host test

Prints with stdout.flush() replaced with notify function

Host test refactoring: created separate enum like class for test result strings

Refactoring of report exporter to support HTML and JUNIT. Modified host tests to support serial and copy issues in more generic way. Copy in test suite and serial in host_test control flow.