docs: Update to reflect Mbed CLI 2 changes

Due to the recent release of Mbed CLI 2, the command line options
have been renamed to ensure good usability and harmonize with the old
tools.

These are the following changes done:
* Minimum Cmake - 3.19.0 is required
* Minimum Mbed-tools - 4.0.0 is required
* mbed-tools cmd `init` to `new`
* mbed-tools cmd `build` to `compile`
* Removed whitespaces

docs/design-documents/tools/cmake.md

@@ -1,7 +1,7 @@
 # CMake Mbed OS
 
 Requirements:
-- CMake 3.18.2 and higher
+- CMake 3.19.0 and higher
 - `mbed-tools` (python 3.6 and higher)
 
 Two steps approach:
@@ -75,7 +75,7 @@ The rule of thumb is to not expose header files that are internal. We would like
 
 `mbed-tools` consolidates all of the required modules to build Mbed OS, along with the command line interface, into a single Python package which can be installed using standard Python packaging tools.
 
-Each application contains a top-level CMakeLists.txt file. The `mbedtools init` command can create this top-level CMakeLists.txt, or a user can create it manually. Each application also has a number of json configuration files. `mbedtools configure` creates an Mbed configuration CMake file (`.mbedbuild/mbed_config.cmake`). The process for building an application looks like:
+Each application contains a top-level CMakeLists.txt file. The `mbedtools new` command can create this top-level CMakeLists.txt, or a user can create it manually. Each application also has a number of json configuration files. `mbedtools configure` creates an Mbed configuration CMake file (`.mbedbuild/mbed_config.cmake`). The process for building an application looks like:
 
 1. Parse the arguments provided to build command
 1. Parse the application configuration

tools/cmake/README.md

@@ -42,7 +42,7 @@ Supported examples can be identified by the presence of a top level `CMakeLists.
 
 Prerequisities:
 - CMake >=3.19.0
-- mbed-tools >=3.5.0
+- mbed-tools >=4.0.0
 
 From the application root or wherever `mbed-os.lib` is found, run the following command to:
  * create the Mbed OS configuration CMake module
@@ -51,15 +51,15 @@ From the application root or wherever `mbed-os.lib` is found, run the following
  * build the project using the `Ninja` build system
 
     ```
-    mbedtools build -m <mbed-target> -t <toolchain>
+    mbedtools compile -m <mbed-target> -t <toolchain>
     ```
 
 `CMAKE_BUILD_TYPE` can overridden with Mbed specific values: `Develop` (default value), `Release` and `Debug`.
 
-`mbed-tools` will pass `-DCMAKE_BUILD_TYPE=<supported-build-type>` for you when using the `--build-type` optional argument of the `build` subcommand as follows: 
+`mbed-tools` will pass `-DCMAKE_BUILD_TYPE=<supported-build-type>` for you when using the `--build-type` optional argument of the `build` subcommand as follows:
 
 ```
-mbedtools build -m <mbed-target> -t <toolchain> -b <supported-build-type>
+mbedtools compile -m <mbed-target> -t <toolchain> -b <supported-build-type>
 ```
 
 If you're running CMake directly, you may need to pass it in yourself as follows:

tools/test/examples/examples_lib.py

@@ -383,7 +383,7 @@ def compile_repos(config, toolchains, targets, profiles, verbose, exp_filter, cm
                     logging.info("Compiling %s" % summary_string)
 
                     if cmake:
-                        build_command_seq = ["mbed-tools build -t {} -m {} -c".format(toolchain, target)]
+                        build_command_seq = ["mbed-tools compile -t {} -m {} -c".format(toolchain, target)]
                     else:
                         build_command_seq = ["mbed-cli compile -t {} -m {} -j {} {}".format(toolchain, target, str(jobs), '-vv' if verbose else '') ]
                         if profiles: