ipmitool_fru: Add new fact to show to information from ipmtool fru

This CR adds a new structured fact called ipmitool with two keys fru and
mc_info.  fru is new data from ipmitool fru print.  mc_info is the
current ipmi_mc_info  fact.  I have updated the ipmi_mc_info fact so
that it uses this new structured fact.

The new fact will look like the following:

```
{
  fru => {
    fru_device_description => "OEM fru (ID 17)",
    board_mfg_date => "Tue Mar  3 21:43:00 2015",
    board_mfg => "DELL",
    board_product => "PowerEdge R220",
    board_serial => "*********",
    board_part_number => "0DRXF5A04",
    product_manufacturer => "DELL",
    product_name => "Test",
    product_extra => "*********"
  },
  mc_info => {
    IPMI_Puppet_Service_Recommend => "running",
    Device ID => "32",
    Device Revision => "1",
    Firmware Revision => "2.65",
    IPMI Version => "2.0",
    Manufacturer ID => "674",
    Manufacturer Name => "DELL Inc",
    Product ID => "256 (0x0100)",
    Product Name => "Unknown (0x100)",
    Device Available => "yes",
    Provides Device SDRs => "yes"
  }
}
```

We are able to use commands like the following:
set the board_product with:
* sudo ipmitool fru edit 0 field b 1

And the product_name with:
* sudo ipmitool fru edit 0 field p 1

lib/facter/ipmitool.rb

@@ -0,0 +1,36 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+Facter.add(:ipmitool, :type => :aggregate) do
+  # https://puppet.com/docs/puppet/latest/fact_overview.html
+  confine kernel: 'Linux'
+  confine is_virtual: false
+  confine do
+    Facter::Util::Resolution.which('ipmitool')
+  end
+
+  chunk(:fru) do
+    retval = {fru: {}}
+    ipmitool_output = Facter::Util::Resolution.exec('ipmitool fru print 2>/dev/null')
+    ipmitool_output.each_line do |line|
+      next unless line.include?(':')
+      info = line.split(':', 2)
+      next if info[1].strip.empty?
+      key = info[0].strip.tr("\s", "_").downcase
+      retval[:fru][key] = info[1].strip
+    end
+    retval
+  end
+
+  chunk(:mc_info) do
+    retval = {mc_info: {'IPMI_Puppet_Service_Recommend' => 'stopped'}}
+    ipmitool_output = Facter::Util::Resolution.exec('ipmitool mc info 2>/dev/null')
+
+    ipmitool_output.each_line do |line|
+      info = line.split(':')
+      retval[:mc_info][info[0].strip] = info[1].strip if info.length == 2 && (info[1].strip != '')
+    end
+    retval[:mc_info]['IPMI_Puppet_Service_Recommend'] = 'running' if retval[:mc_info].fetch('Device Available', 'no') == 'yes'
+    retval
+  end
+end

lib/facter/ipmitool_mc_info.rb

@@ -4,21 +4,7 @@
 Facter.add(:ipmitool_mc_info) do
   # https://puppet.com/docs/puppet/latest/fact_overview.html
   confine kernel: 'Linux'
-
-  retval = {}
-  retval['IPMI_Puppet_Service_Recommend'] = 'stopped'
-
-  if Facter::Util::Resolution.which('ipmitool')
-    ipmitool_output = Facter::Util::Resolution.exec('ipmitool mc info 2>/dev/null')
-
-    ipmitool_output.each_line do |line|
-      info = line.split(':')
-      retval[info[0].strip] = info[1].strip if info.length == 2 && (info[1].strip != '')
-    end
-    retval['IPMI_Puppet_Service_Recommend'] = 'running' if retval.fetch('Device Available', 'no') == 'yes'
-  end
-
   setcode do
-    retval
+    Facter.value('ipmitool')[:mc_info]
   end
 end