Install and enable 0415/pl keymap

instfiles/Makefile.am

@@ -22,6 +22,7 @@ startscript_DATA = \
   km-0409.ini \
   km-040c.ini \
   km-0410.ini \
+  km-0415.ini \
   km-0419.ini \
   km-041d.ini \
   km-0816.ini

xrdp/xrdp_keyboard.ini

@@ -66,6 +66,7 @@ rdp_layout_ru=0x00000419
 rdp_layout_se=0x0000041D
 rdp_layout_pt=0x00000816
 rdp_layout_br=0x00000416
+rdp_layout_pl=0x00000415
 
 # <rdp layout name> = <X11 keyboard layout value>
 [default_layouts_map]
@@ -78,6 +79,7 @@ rdp_layout_ru=ru
 rdp_layout_se=se
 rdp_layout_pt=pt
 rdp_layout_br=br(abnt2)
+rdp_layout_pl=pl
 
 # if two sections have the same keyboard_type and keyboard_subtype, then
 # the latter could override the former.
@@ -103,3 +105,4 @@ rdp_layout_ru=ru
 rdp_layout_se=se
 rdp_layout_pt=pt
 rdp_layout_br=br(abnt2)
+rdp_layout_pl=pl