update the shim README.md and add two articles to introduce how to cr…

update the shim README.md and add two articles to introduce how to create and run confidential computing container

For demonstration purpose, the reference container images are
availbale. Currently, web application demos based on OpenJDK 11
and Golang are provided.
Signed-off-by: Jia Zhang <zhang.jia@linux.alibaba.com>

There are still non-trivial number of systems without FLC support.
Signed-off-by: Jia Zhang <zhang.jia@linux.alibaba.com>

There are still lots of SGX1 machines without FLC support deployed
in filed. These machines eventually needs to be migrated to be supported
by SGX in-tree driver which is product-ready and well-maintained.

This patch targets to address the gap between SGX1 machine and SGX
in-tree driver.
Signed-off-by: Jia Zhang <zhang.jia@linux.alibaba.com>

Signed-off-by: Jia Zhang <zhang.jia@linux.alibaba.com>

Signed-off-by: Jia Zhang <zhang.jia@linux.alibaba.com>

SGX in-tree driver has a different way to go agains SGX out-of-tree
driver. The enclave range is mapped to EPC memory after executing
EINIT, so the anonymous mapping occupying enclave range must be done
early instead of creating it based on the fd of /dev/isgx.
Signed-off-by: Jia Zhang <zhang.jia@linux.alibaba.com>

Use st_rdev to retrieve the major number of device.
Signed-off-by: Jia Zhang <zhang.jia@linux.alibaba.com>

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>

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

- Update deb to version 0.3.0
- Update rpm to version 0.3.0
Signed-off-by: Nshirong <shirong@linux.alibaba.com>

- Update deb to version 0.3.0
- Update rpm to version 0.3.0
Signed-off-by: Nshirong <shirong@linux.alibaba.com>

- Add running rune on ubuntu 18.04-server in running_rune_with_occlum.md
- Add installing rune and occlum-pal with package in running_rune_with_occlum.md
- Update Dockerfile in running_rune_with_occlum.md
- Update the the path of enclave.runtime and rune in running_rune_with_occlum.md
- Update the "enclave.runtime.path" in running_rune_with_occlum_bundle.md
Signed-off-by: Nshirong <shirong@linux.alibaba.com>
Signed-off-by: NYilin Li <YiLin.Li@linux.alibaba.com>

Signed-off-by: Jia Zhang <zhang.jia@linux.alibaba.com>

Signed-off-by: Jia Zhang <zhang.jia@linux.alibaba.com>

Base64 encode the signatrue when sending signature body from server and base64 decode signature when retriving signature  bodyfrom client

Signed-off-by: Nshirong <shirong@linux.alibaba.com>
Signed-off-by: Jia Zhang <zhang.jia@linux.alibaba.com>

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

Signed-off-by: Jia Zhang <zhang.jia@linux.alibaba.com>

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

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

1. Add the ra_product_enclave configuration to allow users to choose Production
Enclave or Development Enclave to be attested about IAS' remote attestaion.
2. Rename ra related configurations as enclave.attestation.ra in annotations.
Signed-off-by: NYilin Li <YiLin.Li@linux.alibaba.com>

This rule enables building package useable for the running system.
Signed-off-by: Nshirong <shirong@linux.alibaba.com>

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

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

1. transfer config.RaType from string type to uint32 type.
2. rename config.RaEpidQuoteType as config.RaEpidIsLinkable.
3. set config.RaEpidIsLinkable type as uint32.
Signed-off-by: NYilin Li <YiLin.Li@linux.alibaba.com>

Signed-off-by: Yilin Li YiLin.Li@linux.alibaba.com

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

1. Copy rpm package in temporary directory to top directory
2. Remove temporary directory
Signed-off-by: Nshirong <shirong@linux.alibaba.com>

- Add command to launch a CentOS 7.5 container
- Update Occlum SDK container image to 0.14.0
Signed-off-by: Nshirong <shirong@linux.alibaba.com>

Sync up with the attestation package from rune/libenclave.
Signed-off-by: NYilin Li <YiLin.Li@linux.alibaba.com>

Dropping invalid fields in Quote to avoid invalid Attestation
Evidence Payload error(ErrorCode: 400).
Signed-off-by: NYilin Li <YiLin.Li@linux.alibaba.com>

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

1. Add optional remote attestation annotation fields in config.json.
2. Pass remote attestation configs to runelet.
Signed-off-by: NYilin Li <YiLin.Li@linux.alibaba.com>