Add all submodules to meta project

.gitmodules

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+[submodule "NeuralNetwork"]
+	path = NeuralNetwork
+	url = git@git.semlanik.org:semlanik/NeuralNetwork.git
+[submodule "HandWriting"]
+	path = HandWriting
+	url = git@git.semlanik.org:semlanik/HandWriting.git
+[submodule "SnakeSimulator"]
+	path = SnakeSimulator
+	url = git@git.semlanik.org:semlanik/SnakeSimulator.git
+[submodule "NeuralNetworkVisualization"]
+	path = NeuralNetworkVisualization
+	url = git@git.semlanik.org:semlanik/NeuralNetworkVisualization.git

HandWriting

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+Subproject commit 4c16bb1e7825e6598aa4a1214851ccb80321689b

LICENSE

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 MIT License
-Copyright (c) <year> <copyright holders>
+Copyright (c) 2020 Alexey Edelev <semlanik@gmail.com>
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 

NeuralNetwork

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+Subproject commit d1488e5e0551c1923343695b607db625c3d06421

NeuralNetworkVisualization

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+Subproject commit 7434b57be1a97b897743728e281ede51dba8bb9c

SnakeSimulator

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+Subproject commit ef309e53c84fd0b06f6e07acf1b84c390a7726c9