linux-capture: Add fallback for PipeWire < 0.3.40

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Proper DMA-BUF format and modifier negotiation is possible with PipeWire
0.3.40. This commit adds checks for older versions and allows to build
against them.

These are classified as follows:
* PipeWire server older than 0.3.24: Restrict to SHM only
* PipeWire server between 0.3.24 (incl.) and 0.3.40: Announce modifiers
  along with the old method. On failed import drop all modifiers.
* PipeWire server 0.3.40 and newer: Announce modifiers along with the
  old method. On failed import drop only a single modifier.

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