[COOK-3241] Fix ohai_plugin recipe when not using source

The ohai_plugin recipe is requesting the `node['nginx']['source']['prefix']` attribute which doesn't exist unless you're including the source recipe (and attributes). Since `node['nginx']['binary']` is a fully qualified path including a prefix isn't necessary.
[COOK-3322] Add package recipe

Signed-off-by: Seth Vargo <sethvargo@gmail.com>
[COOK-3571] Reload nginx ohai after installing from source

Signed-off-by: Seth Vargo <sethvargo@gmail.com>
[COOK-3322] Fix nginx::ohai_plugin on source installs

Signed-off-by: Seth Vargo <sethvargo@gmail.com>
Fix typo (include_Recipe -> include_recipe) in default recipe
[COOK-3602] Add attribute for nginx status port

Signed-off-by: Seth Vargo <sethvargo@gmail.com>
Refactored custom modules support to use a single `modules` attribute

Signed-off-by: Seth Vargo <sethvargo@gmail.com>
[COOK-3603] add recipe for using custom OpenSSL source when compiling nginx