Make FSFW tests accessible from outside

1. Further reduces the amount of code the user needs to copy and paste
2. Makes FSFW tests more accessible. This can be used to simplify moving mission unit tests
   to the FSFW
3. A lot of include improvements

tests/src/fsfw_tests/unit/container/RingBufferTest.cpp

@@ -1,4 +1,4 @@
-#include <unittest/core/CatchDefinitions.h>
+#include "fsfw_tests/unit/CatchDefinitions.h"
 #include <fsfw/container/SimpleRingBuffer.h>
 
 #include <catch2/catch_test_macros.hpp>

tests/src/fsfw_tests/unit/container/TestArrayList.cpp

@@ -1,8 +1,9 @@
+#include "fsfw_tests/unit/CatchDefinitions.h"
+
 #include <fsfw/container/ArrayList.h>
 #include <fsfw/returnvalues/HasReturnvaluesIF.h>
 
 #include <catch2/catch_test_macros.hpp>
-#include <unittest/core/CatchDefinitions.h>
 
 /**
  * @brief 	Array List test

tests/src/fsfw_tests/unit/container/TestDynamicFifo.cpp

@@ -1,9 +1,10 @@
+#include "fsfw_tests/unit/CatchDefinitions.h"
+
 #include <fsfw/container/DynamicFIFO.h>
 #include <fsfw/container/FIFO.h>
 #include <fsfw/returnvalues/HasReturnvaluesIF.h>
 
 #include <catch2/catch_test_macros.hpp>
-#include <unittest/core/CatchDefinitions.h>
 
 TEST_CASE( "Dynamic Fifo Tests", "[TestDynamicFifo]") {
 	INFO("Dynamic Fifo Tests");

tests/src/fsfw_tests/unit/container/TestFifo.cpp

@@ -1,9 +1,10 @@
+#include "fsfw_tests/unit/CatchDefinitions.h"
+
 #include <fsfw/container/DynamicFIFO.h>
 #include <fsfw/container/FIFO.h>
 #include <fsfw/returnvalues/HasReturnvaluesIF.h>
 
 #include <catch2/catch_test_macros.hpp>
-#include <unittest/core/CatchDefinitions.h>
 
 TEST_CASE( "Static Fifo Tests", "[TestFifo]") {
 	INFO("Fifo Tests");

tests/src/fsfw_tests/unit/container/TestFixedArrayList.cpp

@@ -1,8 +1,9 @@
+#include "fsfw_tests/unit/CatchDefinitions.h"
+
 #include <fsfw/container/FixedArrayList.h>
 #include <fsfw/returnvalues/HasReturnvaluesIF.h>
 
 #include <catch2/catch_test_macros.hpp>
-#include <unittest/core/CatchDefinitions.h>
 
 
 TEST_CASE( "FixedArrayList Tests", "[TestFixedArrayList]") {

tests/src/fsfw_tests/unit/container/TestFixedMap.cpp

@@ -1,8 +1,9 @@
+#include "fsfw_tests/unit/CatchDefinitions.h"
+
 #include <fsfw/container/FixedMap.h>
 #include <fsfw/returnvalues/HasReturnvaluesIF.h>
 
 #include <catch2/catch_test_macros.hpp>
-#include <unittest/core/CatchDefinitions.h>
 
 template class FixedMap<unsigned int, unsigned short>;
 

tests/src/fsfw_tests/unit/container/TestFixedOrderedMultimap.cpp

@@ -1,8 +1,9 @@
+#include "fsfw_tests/unit/CatchDefinitions.h"
+
 #include <fsfw/container/FixedOrderedMultimap.h>
 #include <fsfw/returnvalues/HasReturnvaluesIF.h>
 
 #include <catch2/catch_test_macros.hpp>
-#include <unittest/core/CatchDefinitions.h>
 
 TEST_CASE( "FixedOrderedMultimap Tests", "[TestFixedOrderedMultimap]") {
 	INFO("FixedOrderedMultimap Tests");

tests/src/fsfw_tests/unit/container/TestPlacementFactory.cpp

@@ -1,10 +1,11 @@
+#include "fsfw_tests/unit/CatchDefinitions.h"
+
 #include <fsfw/container/PlacementFactory.h>
 #include <fsfw/storagemanager/LocalPool.h>
 #include <fsfw/returnvalues/HasReturnvaluesIF.h>
 #include <fsfw/container/ArrayList.h>
 
 #include <catch2/catch_test_macros.hpp>
-#include <unittest/core/CatchDefinitions.h>
 
 TEST_CASE( "PlacementFactory Tests", "[TestPlacementFactory]") {
 	INFO("PlacementFactory Tests");