Shared stream entries implicitly enable programs as well as stream groups.
Require explicit selection for the program streams subtree too, avoiding
duplicate streams in MPEG-TS output and empty program sections in JSON.
Keep explicit program selection and stream field filtering working. Add
tests for -show_programs and program_stream, and update the MOV and MPEG-TS
references affected by the removal of implicit program output.
Signed-off-by: cuptu <cuptu@qq.com>
88f7fd9ec5