add man pages and autodetection of init system

data/man/meson.build

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+man_pages = files(
+    'tuf-cli.1',
+    'tuf-gui.1',
+    'tuf-tray.1'
+)
+install_man(man_pages)

data/man/tuf-cli.1

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+.Dd August 15, 2020
+.Dt tuf-cli 1 SMM
+.Os TUF Manager
+.Sh NAME
+.Nm tuf-cli
+.Nd Manage the TUF Gaming notebook
+.Sh SYNOPSIS
+.Nm
+.Ar COMMAND
+.Ar <SUBCOMMAND>
+.Sh DESCRIPTION
+This program allows controlling the fan modes and keyboard lighting of Asus TUF Gaming notebooks via a CLI.
+.Pp
+The commands are as follows:
+.Bl -tag -width ".Fl lighting {static | breath | cycle | stobe}"
+.It version
+Print the version of tuf-cli
+.It help
+Show the help screen
+.It info
+Show the current config
+.It restore
+Restore saved settings
+.It fan {balanced | turbo | silent}
+Set the fan mode
+.It lighting {static | breath | cycle | stobe}
+Set the keyboard lighting
+.It speed {slow | medium | fast}
+Set the keyboard lighting speed
+.It color \&"#XXXXXX\&"
+Set the keyboard color
+.Sh SEE ALSO
+.Xr tuf-gui 1 ,
+.Xr tuf-tray 1
+.Sh AUTHORS
+.An Chris Cromer <chris@cromer.cl>

data/man/tuf-gui.1

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+.Dd August 15, 2020
+.Dt tuf-gui 1 SMM
+.Os TUF Manager
+.Sh NAME
+.Nm tuf-gui
+.Nd Manage the TUF Gaming notebook
+.Sh SYNOPSIS
+.Nm
+.Sh DESCRIPTION
+This program allows controlling the fan modes and keyboard lighting of Asus TUF Gaming notebooks via a GUI.
+There are 2 available configuration options. Restore settings which will allow settings to be restored when TUF Manager is run either from CLI, GUI, or the Tray Icon. The other setting is notifications, which if set will notify the user via tray icon that the fan mode changed.
+.Sh SEE ALSO
+.Xr tuf-cli 1 ,
+.Xr tuf-tray 1
+.Sh AUTHORS
+.An Chris Cromer <chris@cromer.cl>

data/man/tuf-tray.1

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+.Dd August 15, 2020
+.Dt tuf-tray 1 SMM
+.Os TUF Manager
+.Sh NAME
+.Nm tuf-tray
+.Nd Manage the TUF Gaming notebook
+.Sh SYNOPSIS
+.Nm
+.Sh DESCRIPTION
+This program should be started automatically by the desktop environment. It is a tray icon that runs in the status bar and allows changing fan speeds, opening the TUF Manager GUI, and notifications about fan speed changes.
+.Sh SEE ALSO
+.Xr tuf-cli 1 ,
+.Xr tuf-gui 1
+.Sh AUTHORS
+.An Chris Cromer <chris@cromer.cl>