CONFIG: improve support for compiler/link options (#1830)

- introduce WM_COMPILE_CONTROL variable to convey control information
  into the build rules.

  The convention (as per spack):
      - '+' to select a feature
      - '~' to deselect a feature

  Eg, to select the gold linker, and disable openmp
  (spaces are not required):

      WM_COMPILE_CONTROL="+gold ~openmp"

CONFIG: accept FOAM_EXTRA_LDFLAGS for AMD, gold, Mingw linkers

CONFIG: generalize PROJECT_LIBS (-ldl used almost universally)

applications/test/00-dummy/Make/options

-/* Without the normal defaults */
-PROJECT_INC     =
-PROJECT_LIBS    =
-
+/* Without the normal project defaults */
+PROJECT_INC =
+PROJECT_LIBS =
 
 EXE_INC = -Idummy
-
-EXE_LIBS = \
-    -lOpenFOAM-dummy
+EXE_LIBS = -lOpenFOAM-dummy

applications/test/00-dummy/dummy/Make/options

-/* Without the normal defaults */
-PROJECT_INC     =
-PROJECT_LIBS    =
+/* Without the normal project defaults */
+PROJECT_INC =
+PROJECT_LIBS =
 
 EXE_INC = \
     -DWM_ARCH=\"$(WM_ARCH)\"  \
@@ -8,5 +8,4 @@ EXE_INC = \
     -DWM_COMPILE_OPTION=\"$(WM_COMPILE_OPTION)\" \
     -DWM_OPTIONS=\"$(WM_OPTIONS)\"
 
-
 /* LIB_LIBS = */

applications/test/CompactIOList/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/test/ListOps/Make/options

-EXE_INC = /*-DFULLDEBUG -O0 -g*/ \
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/test/ListOps2/Make/options

-EXE_INC = /*-DFULLDEBUG -O0 -g*/ \
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/test/Polynomial/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/test/Random/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/test/dynamicLibrary/Make/options

-EXE_INC =
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/test/foamToMetisGraph/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/test/globalMeshData/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/test/polynomialEqns/cubicEqn/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/test/polynomialEqns/linearEqn/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/test/polynomialEqns/quadraticEqn/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/test/wmake1/Make/options

-EXE_INC =
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/utilities/mesh/generation/foamyMesh/conformalVoronoi2DMesh/Make/options

-EXE_INC =
-
-LIB_LIBS =
+/* EXE_INC = */
+/* LIB_LIBS = */

applications/utilities/mesh/manipulation/objToVTK/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/utilities/miscellaneous/OSspecific/addr2line/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/utilities/miscellaneous/foamDictionary/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/utilities/miscellaneous/foamHasLibrary/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */

applications/utilities/miscellaneous/foamListTimes/Make/options

-EXE_INC =
-
-EXE_LIBS =
+/* EXE_INC = */
+/* EXE_LIBS = */