Refactor IntelInstaller into IntelPackage base class (#4300)

* Refactor IntelInstaller into IntelPackage base class

* Move license attributes from __init__ to class-level

* Flake8 fixes: remove unused imports

* Fix logic that writes the silent.cfg file

* More specific version numbers for Intel MPI

* Rework logic that selects components to install

* Final changes necessary to get intel package working

* Various updates to intel-parallel-studio

* Add latest version of every Intel package

* Add environment variables for Intel packages

* Update env vars for intel package

* Finalize components for intel-parallel-studio package

Adds a +tbb variant to intel-parallel-studio.
The tbb package was renamed to intel-tbb.
Now both intel-tbb and intel-parallel-studio+tbb
provide tbb.

* Overhaul environment variables set by intel-parallel-studio

* Point dependent packages to the correct MPI wrappers

* Never default to intel-parallel-studio

* Gather env vars by sourcing setup scripts

* Use mpiicc instead of mpicc when using Intel compiler

* Undo change to ARCH

* Add changes from intel-mpi to intel-parallel-studio

* Add comment explaining mpicc vs mpiicc

* Prepend env vars containing 'PATH' or separators

* Flake8 fix

* Fix bugs in from_sourcing_file

* Indentation fix

* Prepend, not set if contains separator

* Fix license symlinking broken by changes to intel-parallel-studio

* Use comments instead of docstrings to document attributes

* Flake8 fixes

* Use a set instead of a list to prevent duplicate components

* Fix MKL and MPI library linking directories

* Remove +all variant from intel-parallel-studio

* It is not possible to build with MKL, GCC, and OpenMP at this time

* Found a workaround for locating GCC libraries

* Typos and variable names

* Fix initialization of empty LibraryList

etc/spack/defaults/packages.yaml

@@ -19,13 +19,13 @@ packages:
     providers:
       awk: [gawk]
       blas: [openblas]
-      daal: [intel-parallel-studio+daal]
+      daal: [intel-daal]
       elf: [elfutils]
       golang: [gcc]
-      ipp: [intel-parallel-studio+ipp]
+      ipp: [intel-ipp]
       java: [jdk]
       lapack: [openblas]
-      mkl: [intel-parallel-studio+mkl]
+      mkl: [intel-mkl]
       mpe: [mpe2]
       mpi: [openmpi, mpich]
       opencl: [pocl]
@@ -33,3 +33,4 @@ packages:
       pil: [py-pillow]
       scalapack: [netlib-scalapack]
       szip: [libszip, libaec]
+      tbb: [intel-tbb]