#63 Choosing less AMBI-Buses than 24 generates error messages

[Winfried Ritsch]

Due the existance of Extensions and plugins not aware of the amount of ambisonics channels
there are always erros.

error: receive~ 25_AMBI_BUS: no matching send
error: receive~ 24_AMBI_BUS: no matching send
error: receive~ 23_AMBI_BUS: no matching send
error: receive~ 22_AMBI_BUS: no matching send
error: receive~ 21_AMBI_BUS: no matching send
error: receive~ 20_AMBI_BUS: no matching send
error: receive~ 19_AMBI_BUS: no matching send
error: receive~ 18_AMBI_BUS: no matching send
error: receive~ 17_AMBI_BUS: no matching

solution:
please code dummy receive~ for upgrade compatibility