Add premake scripts for projects

thirdparty/libtomcrypt.lua

@@ -1,13 +1,16 @@
 libtomcrypt = {}
 
 function libtomcrypt:include()
+	defines{
+		"LTM_DESC"
+	}
+
 	includedirs {
 		path.join(ThirdPartyFolder(), "libtomcrypt/src/headers")
 	}
 end
 
 function libtomcrypt:link()
-	self:include()
 	links {
 		"libtomcrypt"
 	}

thirdparty/libtommath.lua

@@ -7,7 +7,6 @@ function libtommath:include()
 end
 
 function libtommath:link()
-	self:include()
 	links {
 		"libtommath"
 	}

thirdparty/salsa20.lua

@@ -7,7 +7,6 @@ function salsa20:include()
 end
 
 function salsa20:link()
-	self:include()
 	links {
 		"salsa20"
 	}

thirdparty/zlib.lua

@@ -1,13 +1,17 @@
 zlib = {}
 
 function zlib:include()
+
+	defines {
+		"ZLIB_CONST"
+	}
+
 	includedirs {
 		path.join(ThirdPartyFolder(), "zlib")
 	}
 end
 
 function zlib:link()
-	self:include()
 	links {
 		"zlib"
 	}