knx_v0.7.0

What's Changed

• add api for number of free buffers by @tiniuclx in #735
• Change return status to allow empty linkformat responses by @FrankZRS in #736
• check for null in send response functions by @tiniuclx in #737
• Fix Linux dns-sd build and add logs for message deduplication by @tiniuclx in #738
• fix publish service error by @tiniuclx in #739
• Frank eitt fix by @FrankZRS in #740
• Add entry deleting for POST to fp/gm by @FrankZRS in #741
• Frank eitt fix by @FrankZRS in #742
• fix desynchronisation of g_ssn when requests are retransmitted with echo by @tiniuclx in #743
• Exclude token from ACKs of unencrypted separate responses by @tiniuclx in #744
• Frank eitt fix by @FrankZRS in #745

Full Changelog: knx_v0.6.0...knx_v0.7.0