From: @alexyuyue
Reviewed-by: @robingrosman,@nsyca
Signed-off-by: @robingrosman

From: @liangzhibo
Reviewed-by: 
Signed-off-by:

From: @tiancixiao
Reviewed-by: 
Signed-off-by:

From: @joylvliang
Reviewed-by: 
Signed-off-by:

From: @david-he91
Reviewed-by: @liangchenghui,@guoqi1024
Signed-off-by: @liangchenghui

fix ci

From: @tina_mengting_zhang
Reviewed-by: @mikef,@robingrosman
Signed-off-by: @robingrosman

fix testcases in c_api_transforms_test.cc

From: @zh_qh
Reviewed-by: 
Signed-off-by:

From: @liangzhibo
Reviewed-by: @kingxian,@jpc_chenjianping
Signed-off-by: @kingxian

---
Remove the routine of handling isolated nodes in Renormalize.
Add isolated nodes from Parser&Resolver.
Modify isolated nodes handling in FG&Manager.
Optimize the renormalize routines.
Other optimizations.

From: @jojobugfree
Reviewed-by: 
Signed-off-by:

From: @c_34
Reviewed-by: @wuxuejian
Signed-off-by: @wuxuejian

From: @zhoufeng54
Reviewed-by: 
Signed-off-by:

From: @jojobugfree
Reviewed-by: 
Signed-off-by:

From: @jojobugfree
Reviewed-by: @chujinjin,@jjfeing
Signed-off-by: @chujinjin

Signed-off-by: alex-yuyue <yue.yu1@huawei.com>

add tests

removed some unused imports

fix ci

From: @hfarahat
Reviewed-by: 
Signed-off-by:

From: @ezphlow
Reviewed-by: 
Signed-off-by:

From: @alexyuyue
Reviewed-by: @nsyca
Signed-off-by:

Fixed compile error

Fixed more testcases

Signed-off-by: zhoufeng <zhoufeng54@huawei.com>

From: @donghufeng
Reviewed-by: 
Signed-off-by:

From: @lizhenglong1992
Reviewed-by: @liucunwei,@heleiwang
Signed-off-by: @liucunwei

From: @luoyang42
Reviewed-by: @pandoublefeng,@heleiwang,@liucunwei
Signed-off-by: @pandoublefeng,@liucunwei

From: @yangzhenzhang
Reviewed-by: 
Signed-off-by:

From: @yang_chun
Reviewed-by: @wuxuejian,@c_34
Signed-off-by: @wuxuejian

From: @ouwenchang
Reviewed-by: @yelihua
Signed-off-by:

From: @liu_xiao_93
Reviewed-by: @liangchenghui,@wuxuejian
Signed-off-by: @liangchenghui

And support multiple tensor as input in call method

Signed-off-by: alex-yuyue <yue.yu1@huawei.com>

From: @cathwong
Reviewed-by: 
Signed-off-by:

From: @tina_mengting_zhang
Reviewed-by: 
Signed-off-by: