title: Is there any Pre-installation/ Post-installation hook for Odoo that we can call in our custom module?
body: <p>I am trying to write a customize Odoo module which need to call some form
  of <strong>PRE-installation</strong> or <strong>POST-installation</strong> function / hook , wandering any of you have this knowledge which can share with me how to go about it ?</p>
  
  <p>Sample of process :
  e.g. During installation , when user click to install the custom module , it will call a Pre-installation hook and do some initialization, copying of files or other and then after that once it finished , we can capture the return installation process of Odoo and run a Post-installation hook.
  And it will only execute once during the time where the module install / upgrade.</p>
  
  <p>Do appreciate to share a pointer of where this Pre / Post installation code should go into my module code ?</p>
  
  <p>Thanks
  Kalmen</p>