* rename pten dir to phi

* rename namespace to phi

* rename infrt pten dir to phi

* resolve conflict

* rename pten to phi in cmake

* revert all infrt change

* change needed files

* fix infrt failed

* fix inference failed

* Unify paddle/pten::framework::ddim into pten::ddim

* fix paddle namespace

* compile sucessfully

* fix npu src file

* fix conflict

* fix conflict

* fix tensorrt compiler error

* fix conflict

* fix conflict

* fix tesst file conflict

* fix conflict

* fix mlu file conflict

* fix mlu file conflict

* fix cinn header file conflict

* fix conflict

* fix conflict

* fix conflict

* fix conflict

complement deps of cmake files under WITH_CINN compilation

* optimize cache key

* add cinn cache key by graph address

* perfect cache key test script

* rename GraphHashProto to GraphHashStrategy

* optimize graph_serialize_str_ to graph_hash_val_ and other change by review advices

* optimize cache-key by replace GraphToProgram to Dot string

* fix compile failure bug

* Init the functions of CinnCompiler.

* Add the unit test for CinnCompiler.

* Fix some compilation errors.

* Update the UT of cinn_compiler.

* Use Decomposer&OpFusion passes in CinnCompiler::CompileGraph.

* Update some comments.

* Uncomment some includes in build_cinn_pass.cc.

* Use refs instead of ptrs as returned types of FindGraph & Compile in
CinnCompiler.

* Use the merged CinnGraphSymbolization functions in CinnCompiler.

* Add Basic CINN Runner Class

* Add CinnCacheKey

* Add Cache logic and improve CinnCacheKey


* Modify as reviewer commented

* Implement hash_combine to fix MAC build.