added  arfmcov_vcc block. port seems to work, shared library can be imported. As Im on a different machine right now and forgot to check in some files of yesterdays work, I had to comment the fcov files out. needs to be undone as soon as I get back home.
forgot to actually add the files...
fixed linker error that occurred with fcov and also with fmcov due to not looking for blocks, filter and fft libraries. fmcov now fully ported, (real) unit test passes.
added arburg_vcc files. build works, dummy test passes.
added burg spectrum estimator (hier block). unit test passes. removed installation of purely gr_modtool generated XML files of some blocks. Only install those that were installed pre-3.7.
once again forgot to add the files. also disabled installation of arburg_vcc XML file although it was installed in 3.6. Does look like an unintentional install to me, though.
ported welch estimator. last test (exception2_... ) fails with segfault when checking the (invalid) arguments.