DDSXTY13 — Explicitly define the values for ReliabilityQosPolicyKind

The RTPS Spec defines BEST_EFFORT and RELIABLE_RELIABILITY as:
#define BEST_EFFORT 1
#define RELIABLE 2 (as of RTPS2.4, previously it was defined as 3)

The XTypes Spec should align itself with these values by defining ReliabilityQosPolicyKind as follows in Annex D - DDS Built-in Topic Data Types:

enum ReliabilityQosPolicyKind {
    BEST_EFFORT_RELIABILITY_QOS = 1,
    RELIABLE_RELIABILITY_QOS = 2
};

Update the definition of enum ReliabilityQosPolicyKind in Annex D

Modify the definition of enum ReliabilityQosPolicyKind in Annex D to match what is shown below:

enum ReliabilityQosPolicyKind {
    @value(1) BEST_EFFORT_RELIABILITY_QOS,
    @value(2) RELIABLE_RELIABILITY_QOS 
};