Simplify cmake structure

[learning-chip]

the CMakeLists.txt can be greatly simplified... no need for the ascendc_library() wrapper, just a few flags like this compile.sh

Then, the #include "kernel_operator.h" header can also be removed.

For example, those are not needed:

pto-kernels/CMakeLists.txt

Lines 67 to 81 in a221794

	if(EXISTS ${ASCEND_CANN_PACKAGE_PATH}/tools/tikcpp/ascendc_kernel_cmake)
	set(ASCENDC_CMAKE_DIR
	${ASCEND_CANN_PACKAGE_PATH}/tools/tikcpp/ascendc_kernel_cmake)
	elseif(EXISTS ${ASCEND_CANN_PACKAGE_PATH}/compiler/tikcpp/ascendc_kernel_cmake)
	set(ASCENDC_CMAKE_DIR
	${ASCEND_CANN_PACKAGE_PATH}/compiler/tikcpp/ascendc_kernel_cmake)
	elseif(EXISTS ${ASCEND_CANN_PACKAGE_PATH}/ascendc_devkit/tikcpp/samples/cmake)
	set(ASCENDC_CMAKE_DIR
	${ASCEND_CANN_PACKAGE_PATH}/ascendc_devkit/tikcpp/samples/cmake)
	else()
	message(
	FATAL_ERROR
	"ascendc_kernel_cmake does not exist, please check whether the cann package is installed."
	)
	endif()

Many of those are also likely not needed:

pto-kernels/CMakeLists.txt

Lines 136 to 142 in a221794

	ascendcl
	tiling_api
	register
	platform
	ascendalog
	dl
	no_workspace_kernel)

[zouzias]

Second part (dylibs deps) is fixed in #41