[major API break]: fdaPDE statistical layer rewritten to exploit new core capabilities, variational solver concept introduced

Author: AlePalu

.clang-format

@@ -37,7 +37,7 @@ AllowAllParametersOfDeclarationOnNextLine: true
 
 # contract on a single lines the following
 AllowShortBlocksOnASingleLine: Always
-AllowShortEnumsOnASingleLine: true
+AllowShortEnumsOnASingleLine: false
 AllowShortFunctionsOnASingleLine: All
 AllowShortIfStatementsOnASingleLine: WithoutElse
 AllowShortLambdasOnASingleLine: All
@@ -188,8 +188,6 @@ SpaceBeforeCpp11BracedList: true
 SpaceBeforeCtorInitializerColon: true
 # insert a space after colon inheritance list
 SpaceBeforeInheritanceColon: true
-# insert a space before every control statment: if, for, while, ...
-SpaceBeforeParens: ControlStatements
 
 # other spacing definition
 SpaceBeforeParens: Custom

.gitignore

@@ -10,6 +10,23 @@
 test/fdapde_test
 test/.cache
 test/build/
-test/CMakeFiles/
-test/_deps/
-test/libs/
+build/
+CMakeFiles/
+.DS_Store
+.bash_history
+.idea/
+cmake-build-debug-docker/
+cmake-build-default/
+cmake-build-debug/
+
+#plots
+*.pdf
+*.png
+
+#help files
+!*.csv
+!*.mtx
+
+#docs files
+*.puml
+.Rproj.user