change qucs::acos to std:acos in emmited code
admsXml has issues with operations on defines

replace P_U0 (4.0e-7 * `M_PI) by is value down to 20 digits 1.25663706143591729538-6
deploy constans.vams and disciplines.vams includes

Use a known include for Verilog-A models.
If these files are not passed to admsXml (-I path) it will create
new files on the working directory.
There is BUG in adms with the P_U0 define. It cannot parse it if used
in a model.
We use the floating point number instead of the:
`define P_U0 (4.0e-7 * `M_PI)

 * autotools and cmake deploy the .vams files
 * va2cpp now include the installed .vams files
 * make clean updated to clean up all the generated files
change qucs::abs to std::abs
makefiles, clean before build
Basic admsXml log parsing and highlight

 * now use QPlainTextEdit for the messages
 * set them to readonly
 * as the adms message changes, highlight the 'fatal' warnings
 * click o the 'fatal' log line, find which line to go on the VA file
 * TODO hook the mouse click on 'fatal' to some highlight/focus on the
   source line on the VA which caused the issue.
 * TODO copy text with ctrl+c does not work, RMB is ok