Signed-off-by: NShirong Hao <shirong@linux.alibaba.com>

To use gen-quote command, you also need to have a SPID registered on
IAS(https://api.portal.trustedservices.intel.com/EPID-attestation)
Signed-off-by: NYilin Li <YiLin.Li@linux.alibaba.com>

Given the quote file of an Enclave, a registered `SPID` and `Subscription Key` of [IAS](https://api.portal.trustedservices.intel.com/EPID-attestation), `sgx-tools get-ias-report` command can get remote attestation report from IAS.
Signed-off-by: NYilin Li <YiLin.Li@linux.alibaba.com>

Through importing but not using rune/libenclave/attestation in gen-quote.go
to make the rune/libenclave/attestation package under vendor.
Signed-off-by: NYilin Li <YiLin.Li@linux.alibaba.com>

Update the vendor package github.com/alibaba/inclavare-containers/rune
version to v0.0.0-20200910122807-fd8d2f54(https://github.com/alibaba/inclavare-containers/commit/fd8d2f54e423a3521a5d77fffb2c19f1bd6073f3)
Signed-off-by: NYilin Li <YiLin.Li@linux.alibaba.com>

rune/libenclave/skeleton && sgx-tools: Resolve the launch token adaptation problem on sgx2 + in-tree

- sgx-tools gen-token command reports an error when running on machine with FLC
- Operations related to lanunch token are not supported on machine with FLC

Signed-off-by: Shirong Hao shirong@linux.alibaba.com

- Add Dragonwell and Skeleton images in reference container image
- Update Version number
Signed-off-by: NShirong Hao <shirong@linux.alibaba.com>

Signed-off-by: NYilin Li <YiLin.Li@linux.alibaba.com>

Signed-off-by: NYilin Li <YiLin.Li@linux.alibaba.com>