Add WAMR API bindings in Python (#1959)

Before adding the new bindings:
1. Moved wasm-c-api in a subfolder wasmcapi in the package.
2. Adapted the tests to be able to run in this new structure.

New:
1. Added the WAMR API in another folder wamrapi in the same level as wasm-c-api.
2. Created an OOP proposal.
3. Added an example using this proposal.

language-bindings/python/wamr-api/README.md

@@ -0,0 +1,25 @@
+# WARM API
+
+## Examples
+
+Copy in `language-bindings/python/wamr/libs` the library `libiwasm` generated from `product-mini/platforms`.
+
+There is a [simple example](./samples/main.py) to show how to use bindings.
+
+```
+python samples/main.py
+```
+
+## Update WAMR API bindings
+
+Install requirements,
+
+```
+pip install -r requirements.txt
+```
+
+Run the following command,
+
+```sh
+ctypesgen ../../../../core/iwasm/include/wasm_export.h -l ../libs/libiwasm.so -o iwasm.py
+```