please convert xproj to csproj

[ArsenShnurkov]

[ArsenShnurkov]

user@sabayon /var/calculate/remote/distfiles/egit-src/acme.net.git/src/Oocx.ACME ₽ xbuild Oocx.ACME.xproj 
XBuild Engine Version 14.0
Mono, Version 4.9.0.0
Copyright (C) 2005-2013 Various Mono authors

Build started 2/13/2017 10:21:21 AM.
__________________________________________________
Oocx.ACME.xproj: error : /var/calculate/remote/distfiles/egit-src/acme.net.git/src/Oocx.ACME/Oocx.ACME.xproj: /var/calculate/remote/distfiles/egit-src/acme.net.git/src/Oocx.ACME/Oocx.ACME.xproj could not import "$(VSToolsPath)\DNX\Microsoft.DNX.Props"
Build FAILED.
Errors:

Oocx.ACME.xproj: error : /var/calculate/remote/distfiles/egit-src/acme.net.git/src/Oocx.ACME/Oocx.ACME.xproj: /var/calculate/remote/distfiles/egit-src/acme.net.git/src/Oocx.ACME/Oocx.ACME.xproj could not import "$(VSToolsPath)\DNX\Microsoft.DNX.Props"

	 0 Warning(s)
	 1 Error(s)

Time Elapsed 00:00:00.2163240

₽ dotnet migrate

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Configuring...
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A command is running to initially populate your local package cache, to improve restore speed and enable offline access. This command will take up to a minute to complete and will only happen once.
Decompressing 100% 2772 ms
Expanding 100% 4502 ms
No executable found matching command "dotnet-migrate"

[ArsenShnurkov]

./src/Oocx.ACME/Jose/JWS.cs(37,37): Error CS1061: Type `System.Security.Cryptography.RSA' does not contain a definition for `SignData' and no extension method `SignData' of type `System.Security.Cryptography.RSA' could be found. Are you missing an assembly reference? (CS1061) (Oocx.ACME)

./src/Oocx.ACME/Client/AcmeClient.cs(58,58): Error CS1061: Type `System.Net.Http.HttpContent' does not contain a definition for `ReadAsAsync' and no extension method `ReadAsAsync' of type `System.Net.Http.HttpContent' could be found. Are you missing an assembly reference? (CS1061) (Oocx.ACME)

UPD: that is solved by choosing 4.6 instead of 4.5 as platform