add kiss radio env to most of the variants

variants/heltec_t096/platformio.ini

@@ -92,7 +92,7 @@ build_src_filter = ${Heltec_t096.build_src_filter}
 [env:Heltec_t096_room_server]
 extends = Heltec_t096
 build_src_filter = ${Heltec_t096.build_src_filter}
-  +<../examples/simple_room_server> 
+  +<../examples/simple_room_server>
 build_flags =
   ${Heltec_t096.build_flags}
   -D ADVERT_NAME='"Heltec_t096 Room"'
@@ -145,4 +145,9 @@ build_src_filter = ${Heltec_t096.build_src_filter}
   +<../examples/companion_radio/ui-new/*.cpp>
 lib_deps =
   ${Heltec_t096.lib_deps}
-  densaugeo/base64 @ ~1.4.0
+  densaugeo/base64 @ ~1.4.0
+
+[env:Heltec_t096_kiss_modem]
+extends = Heltec_t096
+build_src_filter = ${Heltec_t096.build_src_filter}
+  +<../examples/kiss_modem/>