allow fact objects to be instantiated w/o triggering all fact collection

this opens the ability to do specific facts at much lower cost.

lib/ansible/module_utils/facts.py

@@ -46,7 +46,7 @@ except ImportError:
     import simplejson as json
 
 # --------------------------------------------------------------
-# timeout function to make sure some fact gathering 
+# timeout function to make sure some fact gathering
 # steps do not exceed a time limit
 
 class TimeoutError(Exception):
@@ -118,20 +118,23 @@ class Facts(object):
                  { 'path' : '/usr/bin/pkg',         'name' : 'pkg' },
     ]
 
-    def __init__(self):
+    def __init__(self, load_on_init=True):
+
         self.facts = {}
-        self.get_platform_facts()
-        self.get_distribution_facts()
-        self.get_cmdline()
-        self.get_public_ssh_host_keys()
-        self.get_selinux_facts()
-        self.get_fips_facts()
-        self.get_pkg_mgr_facts()
-        self.get_lsb_facts()
-        self.get_date_time_facts()
-        self.get_user_facts()
-        self.get_local_facts()
-        self.get_env_facts()
+
+        if load_on_init:
+            self.get_platform_facts()
+            self.get_distribution_facts()
+            self.get_cmdline()
+            self.get_public_ssh_host_keys()
+            self.get_selinux_facts()
+            self.get_fips_facts()
+            self.get_pkg_mgr_facts()
+            self.get_lsb_facts()
+            self.get_date_time_facts()
+            self.get_user_facts()
+            self.get_local_facts()
+            self.get_env_facts()
 
     def populate(self):
         return self.facts