[StopWatch][Timer] Replace table with simple textblock.

[StopWatch][Timer] Replace table with simple textblock.

When those two modules were created, there was no monospace font
and all digits were placed in edje table to keep them properly
aligned. Now at least digits are monospaced so there is no need
to align them manually.

Change-Id: Id47df1025d7201974e8784fbc123779941cdb299