docs: release v2.0.1

fix: no need wait for changing to preop when rescanning

docs: release v2.0.0

update(slave): add check for data sm

update(slave): add check for boot state

update: record send & recv exec time

update: remove static prefix

update: move pdo callback to ec_master_receive, do not block ec_master_send

fix(port/stm32): fix missing iar section

update(port/hpmicro): use ATTR_PLACE_AT_FAST_RAM_WITH_ALIGNMENT for legacy sdk(version less than v1.9.0), the same with ATTR_PLACE_AT_FAST_RAM_BSS_WITH_ALIGNMENT

fix(port): fix stm32 buffer free

chore(scons): add macro for hpmicro

feat: add stm32h7 port

feat: init ec master with INIT_APP_EXPORT for rtthread demo

feat: support single domain and multi domain