Answer:
Software development kit (SDK)
Step-by-step explanation:
A software development kit (SDK) is typically a set of software development tools that allows the creation of applications for a certain software package, software framework, hardware platform, computer system, video game console, operating system, or similar development platform.
Therefore, a programing package designed for a particular platform that enables programmers to develop applications for that platform more quickly and easily is called Software development kit (SDK).