Convert acquire-logger from a static library to an object library.

[aliddell]

Closes #28.

[tlambert03]

awesome!! This works for me.

For those building with meson, with this PR i can now easily build against acquire-zarr by just including this wrap in subprojects/acquire-zarr.wrap:

[wrap-git]
url = https://github.com/acquire-project/acquire-zarr
revision = 28-private-logger-library  # or later something else
depth = 1
method = cmake

and then adding aquire_zarr_dep = dependency('acquire-zarr') to my meson.build

thanks @aliddell

[jeskesen]

LGTM. Would it make sense to add @tlambert03's comment about the wrapper to the README?

[nclack]

LGTM!