Made NBEngine installable + CMake restruct

engine/NBCore/tests/testErrors.cpp

@@ -1,10 +1,10 @@
 #define CODE_ERROR_LOCATIONS
 
 #include <gtest/gtest.h>
-
-#include "Errors.hpp"
 #include <string>
 
+#include <NBCore/Errors.hpp>
+
 using namespace nb;
 
 class TestError : public Error<TestError> {

engine/NBCore/tests/testLogger.cpp

@@ -1,7 +1,7 @@
 #include <exception>
 
-#include "Errors.hpp"
-#include "Logger.hpp"
+#include <NBCore/Errors.hpp>
+#include <NBCore/Logger.hpp>
 
 class TestError : public nb::Error<TestError> {
     using Base = Error<TestError>;

engine/NBCore/tests/testProcesses.cpp

@@ -1,7 +1,7 @@
 #define CODE_ERROR_LOCATIONS
 
 #include <gtest/gtest.h>
-#include "Processes.hpp"
+#include <NBCore/Processes.hpp>
 #include <Windows.h>
 
 TEST(ProcessesTest, GetPID) {

engine/NBCore/tests/testUtils.cpp

@@ -3,8 +3,8 @@
 #include <gtest/gtest.h>
 
 #include <string>
-#include "TypeTraits.hpp"
-#include "StringUtils.hpp"
+#include <NBCore/TypeTraits.hpp>
+#include <NBCore/StringUtils.hpp>
 
 namespace nb {