Change ESXi acceptane level of VIBs to community Supported

-When you install VIB bundles you may see issue like:

              'Could not find a trusted signer: self signed certificate 

For resolving this issue, we have to convert the ESXi to community supported acceptance level.

-To do that:

if  ESXI is a VM :

     Edit settings ->boot option ->disable secure boot.

if Physical ESXi:

     Edit UEFI

Now ssh to ESXi:

- Move the ESX machine to community-support

esxcli software acceptance set --level=CommunitySupported

- Install the bundle with no-sign-check
esxcli software vib install -d  VMware_bootbank_vmware-fdm_7.0.1-16478307.vib --no-sig-check

- Set back PartnerSupported
esxcli software acceptance set --level=PartnerSupported