feat: import Serveless Function build script

- Import vercel-lib.sh from last year's code repository to current
  repo's site code
- Update site code's vercel.json to run this script

Author: samderanova

apps/site/vercel-lib.sh

@@ -0,0 +1,26 @@
+# Install python3-saml dependencies on Vercel's Serverless Function 
+# environment (Amazon Linux)
+
+yum install -y libxml2-devel xmlsec1-devel xmlsec1-openssl-devel libtool-ltdl-devel
+lib_files=(
+   libltdl.so.7
+   libltdl.so.7.3.0
+   libxml2.so.2
+   libxml2.so.2.9.1
+   libxmlsec1-openssl.so
+   libxmlsec1-openssl.so.1.2.20
+   libxmlsec1.so.1
+   libxmlsec1.so.1.2.20
+   libxslt.so.1
+   libxslt.so.1.1.28
+)
+
+mkdir lib
+for file in "${lib_files[@]}"
+do
+   cp /usr/lib64/$file lib/
+done
+
+echo $PWD
+ls
+ls lib

apps/site/vercel.json

@@ -1,5 +1,5 @@
 {
-	"buildCommand": "cd ../.. && turbo run build --filter={apps/site} && cd apps/site && ./copy-api.sh",
+	"buildCommand": "cd ../.. && turbo run build --filter={apps/site} && cd apps/site && ./copy-api.sh && ./vercel-lib.sh",
 	"functions": {
 		"api/index.py": {
 			"memory": 512,