FIX Linker error on windows concerning stdc++fs

Partially addresses issue #34

CMakeLists.txt

@@ -177,10 +177,18 @@ else()
         SHARED ${libcaosdb_INCL} ${libcaosdb_SRC} ${GRPC_GENERATED})
     set(LIBCAOSDB caosdb)
 endif()
-target_link_libraries(caosdb
-    ${CONAN_LIBS}
-    stdc++fs
-)
+
+IF (WIN32)
+    target_link_libraries(caosdb
+        ${CONAN_LIBS}
+    )
+ELSE()
+    target_link_libraries(caosdb
+        ${CONAN_LIBS}
+        stdc++fs
+    )
+ENDIF()
+
 target_include_directories(caosdb PUBLIC
     $<BUILD_INTERFACE:${libcaosdb_SOURCE_DIR}/include>
     $<BUILD_INTERFACE:${libcaosdb_BINARY_DIR}/include>
@@ -192,11 +200,20 @@ target_include_directories(caosdb SYSTEM PUBLIC
 )
 
 add_library(ccaosdb SHARED src/ccaosdb.cpp)
-target_link_libraries(ccaosdb
-    ${CONAN_LIBS}
-    ${LIBCAOSDB}
-    stdc++fs
-)
+
+IF (WIN32)
+    target_link_libraries(ccaosdb
+            ${CONAN_LIBS}
+            ${LIBCAOSDB}
+    )
+ELSE()
+    target_link_libraries(ccaosdb
+            ${CONAN_LIBS}
+            ${LIBCAOSDB}
+            stdc++fs
+    )
+ENDIF()
+
 target_include_directories(ccaosdb PUBLIC
     $<BUILD_INTERFACE:${libcaosdb_SOURCE_DIR}/include>
     $<BUILD_INTERFACE:${libcaosdb_BINARY_DIR}/include>