Allow NaN result when result exceeds limit

Allow NaN result when result exceeds limit

Based on spec if the result is too large to be represented
in the floating point the result is undefined.

Issue was found with ldexp. Since fix is applicable in general
updated the isFinite() to take maxValue and checks the interval value
with the allowed max value in the context (and similarly for
negative numbers). If the result is beyond the 32-bit
floating-point representation expected result is unbounded

Components: Vulkan, OpenGL, Framework

VK-GL-CTS Issue: 3138

Affected tests:
dEQP-VK.glsl.builtin.function.*
dEQP-VK.glsl.builtin.precision.*
dEQP-GLES31.functional.shaders.builtin_functions.precision.*
dEQP-GLES31.functional.shaders.builtin_functions.common.fma.*

Change-Id: Iba27d6b0d7d0bc433a1d0c055cef6f6a61b239ba