Support reading and writing vector value with EmptyDeployment

[lucka-me]

It's about the compile error reported in COVESA/capicxx-someip-tools#10 and COVESA/capicxx-someip-tools#21.

Here is an example:

struct ContentBase polymorphic {
}

struct Container {
    ContentBase content
}

struct ListContent extends ContentBase {
    UInt32 [] items
}

In the header file generated by the tools, ListContent has methods to read and write its value with an EmptyDeployment:

template<class _Input>
void readValue(CommonAPI::InputStream<_Input> &_input, const CommonAPI::EmptyDeployment *_depl) {
    (void) _depl;
    _input.template readValue<CommonAPI::EmptyDeployment>(std::get< 0>(values_));
}

template<class _Output>
void writeValue(CommonAPI::OutputStream<_Output> &_output, const CommonAPI::EmptyDeployment *_depl) {
    (void) _depl;
    _output.template writeValue<CommonAPI::EmptyDeployment>(std::get< 0>(values_));
}

However, none of the template methods of InputStream and InputStream matching the call, which should be like:

// In InputStream.hpp
class InputStream: public CommonAPI::InputStream<InputStream> {
    // ...
    template<typename ElementType_>
    COMMONAPI_EXPORT InputStream &readValue(std::vector<ElementType_> &_value,
            const EmptyDeployment *_depl) {
        // ...
    }
    // ...
};

// In OutputStream.hpp
class OutputStream: public CommonAPI::OutputStream<OutputStream> {
    // ...
    template<typename ElementType_>
    COMMONAPI_EXPORT OutputStream &writeValue(const std::vector<ElementType_> &_value,
        const EmptyDeployment *_depl) {
        // ...
    }
    // ...
};

These template methods and their specialization for std::vector<int8_t> and std::vector<uint8_t> were added in the commit.

I've tested the changes with a simple example, no compile error any more and it works properly.