Add new functionals in the SCAN family (#140)

* JWF: Work adding SCAN and revisions to functionals

* Added references to new functionals

* Added test data and updated references

* Formatting and referencing

Co-authored-by: James Furness <[email protected]>

Author: JFurness1

.zenodo.json

@@ -60,6 +60,10 @@
     {
       "type": "Other",
       "name": "Victorovich, Yuri"
+    },
+    {
+      "type": "Other",
+      "name": "Furness, James"
     }
   ],
   "license": {

src/functionals/CMakeLists.txt

@@ -51,6 +51,16 @@ target_sources(xcfun
     ${CMAKE_CURRENT_SOURCE_DIR}/revtpssc.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/revtpssx.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/rpbex.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/rSCANc.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/rSCANx.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/r2SCANc.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/r2SCANx.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/r4SCANc.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/r4SCANx.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/rppSCANc.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/rppSCANx.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/SCANc.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/SCANx.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/slaterx.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/spbec.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/tfk.cpp
@@ -80,6 +90,7 @@ list(APPEND functionals_headers
     revtpssc_eps.hpp
     revtpssx_eps.hpp
     slater.hpp
+    SCAN_like_eps.hpp
     tpssc_eps.hpp
     tpssx_eps.hpp
     vwn.hpp