Make run.sh executable after ADDing it to the docker image

[ThoenigAdrian]

Make run.sh executable after ADDing it to the docker image so entry command will work, instead of failing with 'permission denied' in certain cases

[JUSTBUILDITNOW]

@ThoenigAdrian Why not setting the permissions on the file before you run docker build ?

file permissons are there when I clone the repo btw ``-rw-rw-r-- 1 jstbld jstbld 1941 May 13 16:42 Dockerfile -rw-rw-r-- 1 jstbld jstbld 21 May 13 16:42 .dockerignore -rw-rw-r-- 1 jstbld jstbld 263 May 13 16:42 .editorconfig drwxrwxr-x 8 jstbld jstbld 211 May 13 16:42 .git -rw-rw-r-- 1 jstbld jstbld 416 May 13 16:42 .gitignore -rw-rw-r-- 1 jstbld jstbld 1255 May 13 16:42 ipsec.conf -rwxrwxr-x 1 jstbld jstbld 689 May 13 16:42 kill_supervisor.py -rw-rw-r-- 1 jstbld jstbld 1083 May 13 16:42 LICENSE -rw-rw-r-- 1 jstbld jstbld 178 May 13 16:42 options.xl2tpd -rw-rw-r-- 1 jstbld jstbld 2079 May 13 16:42 README.md -rwxrwxr-x 1 jstbld jstbld 2953 May 13 16:42 run.sh -rw-rw-r-- 1 jstbld jstbld 333 May 13 16:42 strongswan.conf -rw-rw-r-- 1 jstbld jstbld 535 May 13 16:42 supervisord.conf -rwxrwxr-x 1 jstbld jstbld 365 May 13 16:42 vpn_adduser -rwxrwxr-x 1 jstbld jstbld 250 May 13 16:42 vpn_apply -rwxrwxr-x 1 jstbld jstbld 266 May 13 16:42 vpn_deluser -rwxrwxr-x 1 jstbld jstbld 182 May 13 16:42 vpn_setpsk -rwxrwxr-x 1 jstbld jstbld 86 May 13 16:42 vpn_unsetpsk -rw-rw-r-- 1 jstbld jstbld 341 May 13 16:42 xl2tpd.conf