Implement missing data types for calendar and schedule (#474)

* Added the SpecialEvent struct for the Exception_Schedule property of Schedule, encode/decode/same functions, unit tests, and integrated into bacapp functions.

* Added the CalendarEntry struct for the Date_List property of Calendar and the SpecialEvent struct, encode/decode functions, unit tests, and integrated into bacapp functions.

* Added the DateRange struct for the Effective_Period property of Schedule, encode/decode functions, unit tests, and integrated into bacapp functions.

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Co-authored-by: Steve Karg <skarg@users.sourceforge.net>

ports/win32/Microsoft Visual Studio/bacnet-stack/bacnet-stack.vcxproj

@@ -189,6 +189,8 @@
     <ClCompile Include="..\..\..\..\src\bacnet\timestamp.c" />
     <ClCompile Include="..\..\..\..\src\bacnet\timesync.c" />
     <ClCompile Include="..\..\..\..\src\bacnet\weeklyschedule.c" />
+    <ClCompile Include="..\..\..\..\src\bacnet\calendar_entry.c" />
+    <ClCompile Include="..\..\..\..\src\bacnet\special_event.c" />
     <ClCompile Include="..\..\..\..\src\bacnet\whohas.c" />
     <ClCompile Include="..\..\..\..\src\bacnet\whois.c" />
     <ClCompile Include="..\..\..\..\src\bacnet\wp.c" />

ports/win32/Microsoft Visual Studio/bacnet-stack/bacnet-stack.vcxproj.filters

@@ -204,6 +204,12 @@
     <ClCompile Include="..\..\..\..\src\bacnet\weeklyschedule.c">
       <Filter>Source Files\src\bacnet</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\..\src\bacnet\calendar_entry.c">
+      <Filter>Source Files\src\bacnet</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\..\src\bacnet\special_event.c">
+      <Filter>Source Files\src\bacnet</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\..\src\bacnet\whohas.c">
       <Filter>Source Files\src\bacnet</Filter>
     </ClCompile>