Extend Seal Server run docs for missing Intel SGX shared libs

[fdesu]

As mentioned in #14, when running the Seal Server, errors related to missing Intel SGX libraries might occur. Errors such as:

./bin/seal-server: error while loading shared libraries: libsgx_dcap_ql.so.1: cannot open shared object file: No such file or directory

or errors related to e.g. libsgx-dcap-quote-verify, libtdx-attest-dev, etc.

This PR updates the doc with common issues section to point to official docs from Intel. The docs describe hot to get shared libs for some of distros.

As an example for Ubuntu 22 LTS it goes like below:

sudo tee /etc/apt/sources.list.d/intel-sgx.list > /dev/null <<EOF
deb [signed-by=/etc/apt/keyrings/intel-sgx-keyring.asc arch=amd64] https://download.01.org/intel-sgx/sgx_repo/ubuntu jammy main
EOF

curl -fsSLO https://download.01.org/intel-sgx/sgx_repo/ubuntu/intel-sgx-deb.key
sudo mv intel-sgx-deb.key /etc/apt/keyrings/intel-sgx-keyring.asc

sudo apt update
sudo apt --yes install libsgx-dcap-ql libsgx-quote-ex libsgx-dcap-quote-verify libtdx-attest-dev sgx-aesm-service

[KARTYOM3248]

/workspaces/cocoon/scripts/cocoon-launch