debian: require xtl-dev with runtime
sudo apt install -y libxsimd-dev will not install dependency package - xtl-dev transparently.
find_dependency(xtl) in /usr/lib/x86_64-linux-gnu/cmake/xsimd/xsimdConfig.cmake can't find xtl correctly if xtl-dev was not installed.
See
xtl-dev is not installed with libxsimd-dev transparently (missing Depends:) https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1061104
Signed-off-by: Kentaro Hayashi kenhys@gmail.com