add script to profile Psfao computation time

maoppy/example/psfao_computation_time_test.py

+# -*- coding: utf-8 -*-
+"""
+Created on Tue Aug 31 17:16:53 2021
+
+Run profiler on this script to find computation bottleneck
+
+@author: rfetick
+"""
+
+import matplotlib.pyplot as plt
+import numpy as np
+
+from maoppy.psfmodel import Psfao
+from maoppy.instrument import muse_nfm
+
+Npix = 128 # pixel size of PSF
+wvl = 600*1e-9 # wavelength [m]
+niter = 20 # number of PSF to generate
+
+#%% Initialize PSF model
+samp = muse_nfm.samp(wvl) # sampling (2.0 for Shannon-Nyquist)
+Pmodel = Psfao((Npix,Npix),system=muse_nfm,samp=samp)
+
+#%% Choose parameters and compute PSF
+r0 = 0.15 # Fried parameter [m]
+bck = 1e-5 # Phase PSD background [rad² m²]
+amp = 5.0 # Phase PSD Moffat amplitude [rad²]
+alpha = 0.1 # Phase PSD Moffat alpha [1/m]
+ratio = 1.2
+theta = np.pi/4
+beta = 1.6 # Phase PSD Moffat beta power law
+
+param = [r0,bck,amp,alpha,ratio,theta,beta]
+
+for i in range(niter):
+    psf = Pmodel(param,dx=0,dy=0)
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