tristate features will automatically disable if dependencies marked
as required are missing.
Packagers can manually override using `auto_features`.
Link: https://mesonbuild.com/Build-options.html#features
This allows us to override the location we load data files from, which
allows us to do more kinds of installed tests in the future.
Also, move the global data/tests content into the place that it is used
as it was getting impossible to manage.
These are a more scalable way to apply firmware across a variety of
platforms.
An example:
```
XPS 13 7390 TPM 2.0
DeviceId: c56e9f77cfee65151bdef90310776f9d62827f5a
Guid: a4352c96-f8d7-526c-8485-7f84085f348e <- 0962-2.0
Guid: 7d65b10b-bb24-552d-ade5-590b3b278188 <- DELL-TPM-2.0-NTC-NPCT
Guid: 6f5ddd3a-8339-5b2a-b9a6-cf3b92f6c86d <- DELL-TPM-2.0-NTC-NPCT75x
Guid: fe462d4a-e48f-5069-9172-47330fc5e838 <- DELL-TPM-2.0-NTC-NPCT75xrls
Summary: Platform TPM device
Plugin: uefi
Flags: internal|require-ac|registered
Vendor: Dell Inc.
Version: 7.2.1.0
VersionFormat: quad
Icon: computer
Created: 2019-09-04
```
When this system is queried using tpm2-tools:
```
$ sudo tpm2_getcap -c properties-fixed
TPM_PT_FAMILY_INDICATOR:
as UINT32: 0x08322e3000
as string: "2.0"
TPM_PT_LEVEL: 0
TPM_PT_REVISION: 1.38
TPM_PT_DAY_OF_YEAR: 0x00000008
TPM_PT_YEAR: 0x000007e2
TPM_PT_MANUFACTURER: 0x4e544300
TPM_PT_VENDOR_STRING_1:
as UINT32: 0x4e504354
as string: "NPCT"
TPM_PT_VENDOR_STRING_2:
as UINT32: 0x37357800
as string: "75x"
TPM_PT_VENDOR_STRING_3:
as UINT32: 0x02010024
as string: ""
TPM_PT_VENDOR_STRING_4:
as UINT32: 0x726c7300
as string: "rls"
```
Previously, the various install paths were obtained using get_option
as needed.
This patch unifies the directory selection inside the top-level meson
file as requested in https://github.com/hughsie/colord/pull/62.
Automake and autoconf are impossible to fully understand and Meson now provides
everything we need for a much smaller, faster, and more understandable build.
See http://mesonbuild.com/ for more information.
