[Eva] Move Ivette's "eva_analyzed" from Server to Eva

ivette/src/frama-c/kernel/Globals.tsx

ivette/src/frama-c/kernel/api/ast/index.ts

ivette/src/frama-c/plugins/eva/api/general/index.ts

src/plugins/eva/api/general_requests.ml

src/plugins/server/kernel_ast.ml