We don't want to support only 'relative' validity, so don't assume that the
Validity property will always be a uint32 value.
Instead, we define the Validity propery as '(uv)' tuple, where the first value
(a MMSmsValidityType) specifies the type of validity, and the second value is
a variant formatted accordingly to what the validity type specifies (e.g. a
uint32 value if the type is MM_SMS_VALIDITY_TYPE_RELATIVE).
Both the ModemManager daemon and the mmcli will now include `libmm-glib.h' only.
We also handle two new special `_LIBMM_INSIDE_MM' and `LIBMM_INSIDE_MMCLI'
symbols, which if included before the `libmm-glib.h' library allow us to:
* Don't include the libmm-glib high level API in the ModemManager daemon, as
the object names would clash with those in the core.
* Define some of the methods of helper objects to be included only if compiling
ModemManager daemon or the mmcli.
Renamed `MMCommonSmsProperties' to `MMSmsProperties', and removed the
`MMSmsProperties' provided in libmm-glib. We'll just use the original one
from libmm-common always.
We need them, as received messages are signaled just with their path, so the
program listening to those signals will need to create the proxy objects itself.
